We can limit the harm by putting pressure on an administration - and, crucially it is working to some degree.
Cool so what me and other people who have had enough genocide and think similarly are going to do is loudly tell Biden (which we are doing) that we want to vote for him, but we can’t unless he stops the genocide of Palestinians. Words are meaningless, small concessions are meaningless, he needs to stop the genocide NOW.
It appears at this point, this is the only way leverage will work because centrists democrats have proven thoroughly how cynically they see progressives and the ideologies they base their politics on. Crucially, I didn’t create these conditions where this is the only place progressives feel they have power in this coalition, centrist democrats like Biden did. I don’t accept the blame for that, I have always made it very clear I hope that genocide is a red line for me as a voter, full stop.