It's not nuanced; it's deeper AIPAC control the Congress. Have you seen the last visit of Netanyahu to the congress? He got interrupted by ovations many times on a Democrat leftist government that is not even the most pro-Israel as Republican Trump is.
The whole US government is controlled by them, so where are the Jews and Americans opposing this power grab?
Much comes from ignorance of these facts, I suppose, but we are in an age of information. I don't think ignorance is an excuse to be complicit with genocide.