Well, people did stop this in Ohio, specifically. Local organizers recently successfully petitioned to put abortion rights (which Republican representatives had been threatening) on the ballot statewide - voters got it passed, alongside marijuana legalization, all while facing (and continuing to face) significant antagonism and legal backlash from "elected" Republicans in the 2nd most gerrymandered state in the union.
Both parties suck, I'd go so far as to say both parties frequently do outright evil shit, but they are not the fucking same, and even if they were, that has yet stop people from coming together to get involved and improve their communities themselves. Observing politics near exclusively at the federal level tends to obscure that reality. I accept that this sort of doomerism can come from a place of ignorance, so I offer you suggestion: if you want things to get better, go help. Go find out what groups are actively working to induce local- or state-level government reform, or who are working to directly improve the lives of marginalized people in your community, and go help them. You can't exactly stop fed-level Dems from being useless hypocrites, but you can get involved with groups in your community to help with the work of bringing about positive change - and while that is harder than stewing about the state of things, it actually gets results.
Well for one, Jews and specifically Israelis don't have to go anywhere for Palestine and Palestinians to be free?
Like the slogan just does not at all necessarily imply what you're imagining (or what the US congress claims) it does. That slogan's been around longer than Hamas.