No....the Democrats were honoring the funding that was legally passed by Congress. If you want to make the case that by passing that funding, EVERYONE was complicit in helping carry out borderline genocide, by all means, make THAT case. That said, that isn't really what we are discussing here.
You have no proof of the belief that they thought they were obligated to the votes. Its just as likely that they figured with an educated populace that was paying attention to reality that it was plainly obvious that one side was the better choice on the matter than the other. Turns out, they were wrong about that.
As for your bit about "but Trump"....nobody who voted for that man can ever claim to care about the law, civility, basic human decency or the dignity of the office of the President, as in order to cast a vote for him, every one of those things had to be cast aside. This isn't about blindly supporting anything...its about recognizing that in the moment, those were the two options we had to vote for, short of the nation having some sort of epiphany and simultaneously writing in a more viable option. Given that those were the two options we had, anyone not voting for Harris, bad as she may have been, is complicit in the worse option coming to fruition.
Those are facts based on what the conditions were when we all had the chance to make things different, try as you might to try to rationalize it into something different.