I think the biggest pro for me would be that sane policies at the federal level that are broadly popular in my region could stop getting blocked by yokels representing states that sometimes barely even have the population of the semi-rural county I grew up in in the Northeast. Ditto for not having to worry about corporate interests from those same states filing frivolous lawsuits that manage to block the implementation of the odd policy that does make it through, like student loan forgiveness.

Also, I’m not above admitting that there’s a great deal of appeal in the potential schadenfreude of all the “But I don’t want my taxes paying for the trans, minority welfare queens getting bottom surgery! Down with any social safety net!” Republicans from the South and Midwest being forced to reckon with the fact that they have actually been the welfare queens this whole time, and it’s only been by the grace of those dang liberal states paying in disproportionately high shares of taxes that get funneled towards red states that their shithole states haven’t yet collapsed entirely. Let’s see how Alabama fares with its whooping 1.1% of the national GDP when they no longer have federal funding to prop them up. Their top 5 employers are all public institutions that likely depend on federal funding to remain operational, and 2/5 of them are military bases. Good luck, guys, the South will fall again.

For cons, obviously it’ll suck for the people who still live in those states until they finally move, but that’s been the case for a long time. If the decent regions help finance the move for those who are willing to leave, but unable to for lack of money, I’m kind of fine with it. Same goes for overlooking criminal charges when people are unable to leave their state due to some BS non-violent crimes landing them on parole and being refused travel permissions. If Mississippi wants to lock you down as exploitable labor because you got pulled over with some weed, or loaned a kid a book that said gay people actually aren’t the spawn of Satan sent to destroy US civilization, come on over. They can keep their sex offenders and violent criminals, though. For the folks that don’t move because “Oh, but my family is here and I love them too much to move away,” or similar reasons, good luck with living through the second feudal age, but that’s your own choice.

Likewise, it’ll be sad to see them destroy national and state parks in the name of business, as well as visiting those places while they still exist being a much riskier proposition.

Honestly, I think most red states severely underestimate how poorly things would go for them if they were to be cut loose, while overestimating the popular support they would enjoy and their international appeal as trade partners. Even for the ones who are in a relatively favorable economic opinion, like Texas, would probably see absolutely insane levels of brain drain from industry and higher education that would leave them dead in the water, barring state-sanctioned violence to prevent people from leaving.

That said, their economies would be devastated. Arizona, New Mexico, Texas, Oklahoma, Arkansas, Louisiana, Mississippi, Alabama, Tennessee, North Carolina and Kentucky would all see between 20.7%-30.7% of their overall revenues for state and local governments vanish overnight if they stopped receiving federal funding. States like New York and Texas could probably come away at a net profit just by retaining the taxes they’d previously passed on to the federal government, even factoring in how many new services would have to be provided for at the state/regional level that were previously financed by the federal government. For the states like New Mexico, Mississippi, and Alabama that manage to claw back almost all of what they contribute in federal taxes, if not get more back in federal funding, good luck. Somehow, I suspect their new, libertarian overlords in Texas aren’t going to be so keen on subsidizing their impoverished neighbors to any real extent.