Don’t take this (too) badly, but given what those in power have done there, “Standing with Israel” is morally the same as “Standing with Hamas”, except perhaps that you’re standing in a pool of blood which is maybe 100x deeper if you stand with the former than the latter.
The only side to take here that’s a “moral highground” (and hence not in a pool of blood) is that of the innocent civilians who are being murdered by both sides.