Supporting Joe Biden means you support Israels actions in Palestine.
Literally the only leverage you have in this system is your vote. If you give it freely without strings, this is what you get.
In 2020, Biden had to come get Bernie supporters; the progressive vote. The result was the singularly most progressive campaign a Democratic nominee has ever had and subsequently the most progressive president (in terms of policy) that we’ve seen since Jimmy Carter: Biden did not get there on his own. He was dragged there because 2016 showed you can-not get elected as a Democrat without the support of progressives. Its quite simple: you can’t influence a candidate if you don’t withhold your consent. Team blue-no-matter consents to the extermination of the Palestinian people.