Based on basic logic? I don’t really want to type a bunch reasons why, if the ACC is raided, *only* Clemson and FSU will be targeted. There’s plenty of realignment articles laying out why that wouldn’t happen. If you haven’t been convinced, you won’t be convinced.
And the Big 12 left standing, even as non super conference nobody, is easy enough to lay out. The ACC gets raided of its value. Nobody else from the Big XII does because they aren’t valuable enough, but valuable enough within the fanbases to still be a conference.
What’s left of the ACC will have no value to survive on its own. And what’s left of the PAC 12 won’t either.