Cutting off all military aid to Israel would definitely make us feel better for a minute, but I think your post accurately points out that what comes next is likely to be much worse. One genocide may turn into a different genocide as the regional powers decide it’s open season on Israel. Then once Israel is facing probable eradication, the US is faced with allowing the destruction of Israel (including Israelis that oppose the current actions of their state), or getting back into a conflict, now with many more regional forces, and possibly nation states involved.

I absolutely agree with you that the IDF’s actions are abhorrent and consistent with war crimes as I understand international agreement (which is only layman’s understanding), but Bibi appears to be playing chicken with the entire population of Israel, and Biden may have blinked after considering the consequences.