You are right that with the Trump administration (well, bipartisan support), US companies don't have to worry about any adverse political action by cooperating with Israel. Negative publicity from the common people also won't adversely affect their bottom line. But they do have to worry about the legal aspects - the US is one of the few countries actually having laws against genocide / war crimes. Trump may be ready to bomb the Hague and the ICC, but we know he can't bomb US courts for any similar proceedings against any US or foreign firms ...
Trying to pin support for israel on one side and not on the entirety of the us government at all levels is either profoundly naive or profoundly dishonest.
Well, Biden was claiming that "there is no genocide" while approving the building of (future) concentration camps for the ethnic cleansing of Palestinians, while Trump is worried only about the "optics" but is fine as long as a "beautiful resort is finally built in Gaza", after herding the Palestinians into these new "refugee centres" (i.e. the concentration camps) and from there to Egypt (who has been promised to be made the future gas hub for Europe) to complete Israeli occupation of Gaza. I'll leave it to you to decide whether I am being naive or dishonest or who planned the genocide and who is complicit in it - Here's the "propaganda" sources based on which I am making these assertions:
