You are hopelessly naive. Nothing scares the shit out of the Jewish left more than the prospect of the left embracing the Palestinian cause. There is a reason they made destroying Jeremy Corbyn a priority. They have repeatedly kvetched about the possibility that their BLM frankenstein will turn against them and increasingly openly show solidarity with the Palestinians. If that happens it would be completely devastating to them. That you dont understand why that is shows you fundamentally don't understand how Jewish divide and conquer tactics work.