figured they'd move to the liberal coastal cities where everyone gets a hammock for a safety net
If we actually enacted Medicare for all (MFA?) and UBI, I have no doubt millions would rush our shores looking for a better future.
As things stand, whatever differences exist... they're too few, and don't go far enough to help people.
There's still extreme income inequality and poverty in "liberal cities" even if some of them appear rich after gentrification.
Many major cities sound more like death traps on the evening news. Not exactly utopia inspiring.
No, we still have a long ways to go before "better" policy reflects a better reality. Especially when the last election has people still scared and clinging to a corporate center. If we don't let go of Wall Street we'll never improve. Never reach a point that you describe.