Meanwhile, Biden’s unconditional aid for Israel’s genocide is alienting Arab Americans, who have a lot of voting power in some key states

Hmm good point yes.

as well as a large (though I can’t say exactly how large) portion of young, Black, and Latin American voters who can see the obvious racism at play.

Yeah I was reading this article about how Trump is super loved by Cubans in Florida. I could hardly imagine it, his whole 2017 campaign was based on keeping the latino's out with his big-ass fence!! But they love his conservatism. Even though he's not actually conservative, he just does whatever he wants.

Then again, maybe pushing the abortion rights thing will make enough of a difference to counteract this

It's also such a hot topic with conservatives that it will really make them go vote, whereas it's something most democrats don't really care about as much (until they actually need one).