How about the same questions to you regarding the Palestinian genocide?
Before you answer, the US withdrawing aid would not stop the genocide. Israel has enough on hand to completely level Palestine. So what do you suggest should be done? Also keep in mind that withdrawing aid means that Israel completely stops even pretending to listen to the one country in the world that can talk to them. Also, also keep in mind that Israel has nukes.
I write to my elected representatives to request that they do something. I realize that it’s of limited value, given that the representative for my House district, Mark Pocan, agrees with me and has already voted ‘no’ on aid, and stated that he would be thrilled to personally hand Netanyahu over to agents of the ICC; Sen. Fuck Ron Johnson makes it very clear that he does not wish to hear anything from constituents; Sen. Tammy Baldwin still supports Israel, so maybe I can influence her. I wrote to Biden and said that I could not in good conscience vote for him in the primary. Bigger picture, I think that the state of Israel needs to be abolished for the long-term good of all of its citizens.
What do you want your representatives to do? Again, withdrawing aid will not stop the genocide and will only make the problem worse.