Over time, whether it's good or bad, people may self-segregate, based on ideology. We've sorta already done that with the blue dots of cities and the red swaths of nearly-empty land, where at the state level, they bludgeon each other over every single thing.
Well, at least they'd get to easily shape their county the way they see fit. No more Rs in D-heavy Austin deciding what to do for Ds in El Paso or Rs in Abilene.
Sticking to this home base of states' rights because the Constitution is all about it is just an antiquated idea. It wasn't a bad idea, but there's 350 million people now and 50 states.
A state is too much (not you, Rhode Island peninsula).