It's 50/50. Yes, ideally it gets punted to the states, the states can mark their preferences (see abortion). What's great about that too is you can move to a state that matches your believies.

The 50/50 part of it - still there is federal vs state jurisdiction. If there's stuff on federal jurisdiction that's just a mess as far as congress never fixing it (say - immigration), states can do this and that about it somewhat (sanctuary city) - they can manage some rotten branches - but they can't touch the rotten root of federal jurisdiction