Sure. So it's not really my place to have this whole conversation, but I already did get involved, and I'm happy to give my input.
The point is that whatever's going on with Biden, Trump is objectively worse on every single metric, including but not limited to the safety of Arabs, Palestinians, and potential victims of the American military in general, at home and abroad.
Someone who cares about dead Palestinians could absolutely try to pressure Biden to stop sending weapons to the IDF, remove Netanyahu to the ICC, or whatever they want to do. Or they could point out that Biden is a monster for continuing the US's war criminal support for Israel, and not immediately denouncing Israel the instant they started blocking food aid or bombing hospitals. Sure. All that makes sense. If any of that is what you're doing, and it sounds like I'm trying to disagree with it, I am not. I actually originally came in this thread complaining about the OP cartoon, because I think most of the Palestine protestors are absolutely consistent and justified and the cartoon is grossly unfair as applied to them.
The very specific and very politically motivated construction from there to "that's why I can't support Biden, against Trump" or "that's why I'm not voting" or anything like that, is endangering Palestinians in Palestine, Palestinians in America, Hispanics in their home countries and in the US, Americans in the US, and many many other people, to an absolutely horrifying level.
This person is, if I am understanding them correctly, objecting very specifically to the second one. They're asking that people stop using the suffering of them and their family and friends to try to promote a particular political agenda which actually endangers them, increasing the chance of a genocide much much worse than what's happening right now in Gaza, while pretending that it's a Palestinian-friendly course of action and they're doing it because they care about Palestinians. They're pointing out that it's a ghoulish and dangerous thing to point to their own dead relatives and then try to use them to excuse a politics which threatens to make a lot more corpses, while pretending that it's on their behalf.