So since all leading plans include the southern strategy and the QM has given additional information, I'm going to position myself again on the topic.
Southern Strategy is still a bad idea. The strongest argument against it is has been the unnecessary antagonizing of a local hegemon, while the potential abuse towards rivals is also possible, though not necessarily likely.
Let's review the new information by the QM.
1)
Thus: there are entirely rational reasons for these polities to be wary of international influence in their region, given the uncomfortable likelihood of such influence sparking unhappy side effects for them. That does not, in any sense, preclude there also being xenophobia in there, but it is not only xenophobia. The Strategy aims to defuse this anxiety by allowing them to -- by majority vote of representatives from the region -- exclude from inclusion any states they deem unacceptably likely to drag that influence into the movement. It is possible that parties could act in poor faith to exclude their competitors, but they'd have to convince an awful lot of people from Yucatan to Georgia to sign on with that, and it would rapidly erode the legitimacy of the mechanism in the eyes of the other participants, likely getting it ripped out.
Summary: The southern and mexican states are anxious about foreign influence, which could lead to bad side things happening. There are rational reasons to be wary, but this clause is concerned with defusing anxiety, rather than introducing rational measures regarding foreign influence. It does not provide an effective defense against foreign influence, but is a token gesture.
2)
They all are concerned with a pattern of escalating international involvement in those sea zones. When one of the competitors is Russia, people tend to get nervous about what happens to the prize being competed over, should Russia perceive itself to be falling behind. Furthermore, Brazil's interest in impeding or influencing an American reunification is obvious, as is their imminent intention to do something about it, and parties' participation in this conference signals interest in the notion to Brazil just as much as it does to Russia.
The major worries are about Russia doing something terrible when they fall behind. Which is a fair point, Nick isn't the type to accept losing gracefully. But that is outside the scope of discussion about the southern strategy, since the real point of disagreement is about Brazilian influence.
Brazil has an interest in either impeding or influencing an american reunification. Yeah, that is obvious, any nation has an interest if a continent spanning power starts forming in their region. Having an interest in influencing us doesn't mean that interest is malicous. Making talks about respecting each others neutrality is a form of diplomatic influence. Investing into cultural exchange is a form of diplomatic influence. Petitioning the revivalist council to not disturb Brazilian trade along the Mississippi River is a form of diplomatic influence. Brazilian has their interests, we have ours, but that doesn't mean we can't come to an agreement.
3)
None of which makes it a particularly effective means of combating foreign influence in the region.
You may want to combat Brazil et. al.'s influence in the Caribbean and the Gulf. The body you form may want to as well. That will be something to be handled as a matter of active policy, down the line. The Southern Strategy is about appeasing some factions' anxiety about influence in the region. In terms of its effect on the actual problem, it impedes one specific kind of influence very minimally. It is not about providing a strong defense against foreign influence; it is about appeasing anxieties -- both warranted and unwarranted -- about same, by giving involved polities a finger on the pulse.
Southern strategy appeases anxieties and doesn't provide a strong defense. Not picking southern strategy will have no effect on our ability to oppose Brazilian influence later, should we so choose. And we already know the drawback, antagonizing Brazil, a local power with a strong economy. This is a bad and completely unnecessary idea.
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
Since
@uju32 quoted me while I was sleeping, I will be addressing the points here.
1) Regarding Brazil having diplomatic influence on the Mouth of the Mississipi:
It is important to set red lines that potential rivals are aware of. Clear messaging prevents any misunderstandings down the line.
You dont want people thinking somewhere is free real estate when it isnt, and investing resources based on faulty assumptions.
Business investment is always welcome, attempting to establish a puppet state is not.
Picking the southern strategy is a bad way to communicate red lines to Brazil. The new revivalist movement is organizing themselves just now and Southern Strategy tells local states: "Pick us or Brazil". This will not be received as a message about red lines by Brazil, it will be received as "The revivalists kind of hate us". The reasonable way to go about it is meet with Brazil and clearly state the red lines inside diplomatic talks, like normal states do. To use an analogy: If I don't want somebody to be in a specific party, I don't handle the problem by telling party members "If you talk to much to B, I will blacklist you from future parties", I would go about the problem by telling B "I would prefer if you didn't come to this party".
There is also zero evidence that Brazil has puppet states in the american south.
A South American consortium could have invested in the mouth of the Mississippi at any point in the last two decades and Victoria would not have been militarily capable of doing shit.
Noone did. So its entirely reasonable to be suspicious about intentions now.
The South Americans are not suddenly deciding to invest for the first time into the Mouth of the Mississippi. There is no text to support this interpretation. Previous investment would be an entirely reasonable assumption. What they are doing is organizing a new summit for investment, since Victoria has been beaten and the revivalists are picking up steam. In other words, they are organizing a conference because a lot of things have happened in the USA. If your suspicious about organizing conferences in reaction to major events, I can't describe this fear as reasonable.
I mean, the foundational documents of the Commonwealth go out of their way to be explicit about actively resisting Russian influence anywhere on the continent. Its a core pillar of our foreign policy.
Making it clear that extends to attempts by other powers to exploit is entirely consistent.
The southern strategy doesn't make it clear. It's not useful for communicating intentions as I outlined above, since it doesn't even address the actual foreign powers. The Russians have shown themselves to be actively malicious to the USA, Brazil hasn't. If you want to make your red lines clear to Brazil without misunderstandings, this option is terrible for that.
2)Regarding investment:
Not all investment is benign.
Accurate, but unrelated to the actual point.
Financial investment is fine. Political infiltration is not.
And its best to make it clear now, before they actually invest resources and it tskes on a life of its own
Do you want to sign off control of New Orleans for 99 years? Or fight a war there?
We have no evidence for political infiltration. We have no evidence for Brazil trying to make new Orleans into a colonial possession. Antagonizing somebody because we assume the worst scenario is bad idea, as I already outlined.
When both gringos and Latino locals over a thousand kilometres of border are worried about something, odds are that they are seeing something thats actually there.
The object of worries exists as the QM stated and it's a race between Russian and south american influence. As the QM also stated, the southern strategy aims at easing fears, it isn't an effective strategy to curtail foreign influence. It's also not an effective way to communicate limits as you think it is. Even if the thing I'm worried about is real, that doesn't mean that what eases my fear the most is the most rational behavior. Turning the lights is a highly effective way to reduce fear, but doesn't help much with actual threats.
In summary: We know to little to position ourselves against Brazil. Southern Strategy is a bad way to communicate and will antagonize a power we have yet to talk. It's not a good way to curtail foreign influence. At it's worst, it will lead to a rival block forming in the south, for no real Benefit. Please do not vote for plans that include it, this will come to bite us in the ass later. I will be making a plan that drops southern strategy, since all existing plans include it.