By how I meant "in what way exactly?". I'll make this clearer. I want to know exactly what was done. We understand generalities, but I want particulars. Why, and who ordered are also important, I agree. We can ask in the next round.
My opinion:
Who did it and why are far more important. How they did it is of no relevance unless we have the ability to reverse it, which we dont; requires Countermagic, and which type of countermagic depends on who it was, and what type of creature they are.
Almost as important is Why.
Could be because of White Council rules. Could be because its too great a power for Olivia to control. Could because using it will attract enemies looking for her or her bloodline. Could even be because the person who did it is using it in her place.
These are critical questions.
Details about how they did it is just curiosity. And we dont have unlimited Crown focuses.
Can = should here. Molly is rolling inhuman amounts of empathy dice. She can handle the explanation much better, smooth the corners, etc. She's a big scary thing that Maria knows that can handle the introduction of magic to Maria's husband to be.
That doesnt matter.
Molly will not be there the next time there's questions about magic in the household, or how to handle it.
Maria will.
Give Maria a fish, and she is fed for a day.
Teach her to fish, and you feed her for the rest of her life.
Same principle.
We should not be giving Maria a fish, we should be teaching her how to fish by helping her do the explanation, so she has the confidence and experience to handle this sort of thing next time it comes up, which it will.
They do, actually, as per your own quote - they are keeping wizards out of politics. Probably military too.
Note that there is no Law against it. Just custom and policy. Merlin didnt put his opinions into Law.
Morgan fought in a major war iirc(either WW1, or sometime in the 19th century), and I think McCoy was active during the Indian Wars. So their success appears to not always be perfect.
International treaty enforcement signed by whom? It does not really matter how you twist it, there is no consent involved on the part of the talents being policed. Whether you see them as civilians in a city under occupation by a militia or the native population of some land inflicted with the treaties of outside powers they did not choose the people who have taken discretionary power of life and death over them, nor do they have any capacity to influence their policies and methods of enforcement.
The fact that most minor talents would not spontaneously enforce the Laws does not say much either, they do not have an infrastructure to enforce the Laws within. The choice is basically 'you get policed by this self-selected militia and if you do not like it make your own... whichout most of the people best equipped to do so because the militia recruited them'.
There is no consent involved in most treaties by the vast majority of the world's population, from non-proliferation to IP law. They might approve of some of the aims, but they generally werent consulted, or represented by envoys of their choosing.
Most of the debts owed by the Third World were not incurred with their consent either, and yet they are on the hook for them.
And at least in modern history, attempting to commit genocide against a portion of your domestic population can get you summarily policed by the international community, whether you agree or not.
They dont have an infrastructure because they lack the power or resources to protect themselves or any recruits.
Those magic users who dont make the Council are often courted, and sometimes end up with places like the White Court and the Faerie Courts. Its not just the Council thats interested in wizards after all, or seeking them out.
Nobody's interested in running a startup in this environment.
EDIT
And its not like muggle-majority organizations dont exist.
The Venator Umborum and the Fellowship of St Giles both exist and retain effectiveness without wizard membership. So does the Inquisition. In this AU, the Shih are also a thing in the East, and there's definitely more.
This isnt the Council strangling competition (not that they wouldnt, they just dont have to). This is just a very tough startup environment without major backing, and very few people are interested in paying the price for it, or have the resources to do so.