I'm skeptical since the genocide has bipartisan support. The position would have to become something insane like "He's letting Israel go too far and giving them carte blanche to do whatever they want. Joe Biden at least held Netanyahu back". Nothing would probably really change and they'd have to twist their brains into a pretzel to think that though. Maybe the media tries to pin some new genocidal act on Trumps support when the capitalists want to stop Israel or hurt Trump? Idk.
I also feel like there's a small chance that Trump, as a media and PR obsessed freak, might tell Israel to dial it back if he comes to power and the protestors say too many not nice things about him or wants to sell them out for a quick win to distract from whatever scandal he has that week. Anything can happen really.
Yeah we can argue what is or isn't fascism definitionally and within the burgerreich but at the end of the day it is evil and it is the actual existing fascism of the world. At a certain point we're splitting hairs on describing a political party that is supporting a genocide and the words don't matter that much. Liberal regimes have been doing this kind of stuff for hundreds of years.