Did you completely miss the part where I wrote how we could potentially promise to marry a Frey if Edmure refuses? Because I did in fact write that for this specific reason. I don't want to sound rude but maybe you should spend a bit more time reading people's posts before writing a huge reply about a single issue.
I did not fail to notice, I pointed out that it sounds bad. Instead of offering to marry his daughter, we are trying to push it on someone else first.
Edmure is going to owe us when we come to his rescue, regardless of how the conflict started.
That we need Edmure and the Riverlands in our war is irrelevant. They are already committed to a war with the Lannisters. They've suffered casualties and a severe humiliation at the hands of these people and it is extremely unlikely that they will make peace with them yet. Honour demands that they fight the Lannisters.
You are trying to seperate us marching south from Catelyn taking Tyrion. Edmure came to our aid, not the other way around. That we come to his is natural, not a favor that he should feel like he needs to repay by accepting a marriage.
This is objectively wrong. Sansa wasn't married off to Tyrion in order to pay lip service to the law. She was married off to Tyrion in order to create a claim on the North for their future children.
I'm not sure how you managed to read that. I'm, not talking about
WHY Sansa was married to Tyrion, I am talking about why Cersei had to went into an explanation that Sansa is technically a ward of the crown, and that since her brother (the head of the house after thier father's death) is a traitor at arms, the Crown has the legal right to marry her off to anyone it sees fit.
This is also objectively wrong, which I outlined in my post. A marriage to the Lord Paramount in the kingdom that you're a part of is significantly more valuable than a marriage to one of a different kingdom, all else being equal.
You are going to need to be a little more specific to say it is objectively wrong, when the Freys are smack dab between the North and the Riverlands. They have interests both ways, and family ties to both families since they are both related by Cat. Frey lucked out with a marriage to a branch of the Lannisters, was tempted by a false promise to the Martells. It's the rank he is after, and we can come in promising ourselves, or we can walk in and right away try and weasel out of anything by promising another. The latter runs the risk of offending him more than not offering a marriage in the first place.
Also, the deal should be way worse than the deal offered in canon, which was to borrow a phrase "the worst trade deal in the history of trade deals, maybe ever." What Caitlyn offered Lord Frey for crossing the Twins was absolutely ridiculous.
Again, I don't agree with this. The deal was more than fair, as I've already explained. Robb went to war claiming that his father was innocent.
His father, who everyone knows was Robert's bestie, who everyone knows hated the Lannisters and thier hold over the king, is alleged to have plotted to give Stannis the crown. The Lannisters even have written proof in Ned's own hand! No one knows of the Twincest yet, and Frey has no obligation to join rebels in arms, especially when it seems like everything is over if he simply does nothing. Oh sure, he should have joined his lord and defended the Riverlands from the Lannister raids, and later invasion until the King's Peace was restored, but when Robb arrives to negotiate for help Frey has no obligation to go out of his way to help.
A marriage and a few hostaged Frey
gives the Starks is hardly worthy of quoting Trump memes. A stratigic crossing point, a large army, a secure rear, in exchange for a marriage is not a bad deal. Especially when at the time Robb had dire need of all three.