Honestly, at this point, the Pro-Hamas wing of the Democrat base is a lost cause. I'm talking about the "Uncommitted", heckling, protesting variety of voters. They think Biden is committing a genocide and there really is no way to win someone over who thinks that (after all, what's worse than a genocide?).
But, this also is a fringe minority of the electorate. They are loud, yes, but far from a majority. The vast majority of Americans, particularly moderates and independents, think October 7 was horrific and unjustified. They believe Israel has a right to defend itself and to exist. And they certainly do not support Hamas or have any sympathy for that cause.
As I said, Biden has nothing to lose at this point. But he has a way to lock up moderates and even some disaffected conservatives that will more than make up for the loss of the radical base. Case in point, John Fetterman's approval numbers have gone UP since he came out strongly in support of Israel.
you are right.