The must-win bloc voted against Kamala knowing that it will help to elect even worse candidate w.r.t. relationship with Israel?
In the Netherlands a party called "DENK" (think, in Dutch) was created, by 2 Turkish muslims, and immediately half the leftist voters (PvdA, party of labour) switched sides. They are more rightist, but especially they are extremely socially conservative. They want extreme punishments for crime and harsh application of the law, except on immigration. Along with the obvious issues (like essentially abolishing animal rights and standards of treatment, allowing islamic schooling, including extremist islamic schooling, pro-minority, except for that one minority with "confusion" between Judaism and Israel, ...)
Anyone who thinks about it for 10 seconds will realize that a long-term alliance between progressives and muslims is impossible. They are forced into that as long as they are very weak, but there's a point where that stops.
It'll be very funny when what has happened in Eastern Europe before happens first in Western Europe, and then in the US. Extreme "friction" will develop between leftist parties and any concentration of muslim voters. This has already happened in a few locations but you've seen nothing yet.
Plus, if I can be less than subtle, muslim Arabs are antisemitic and strongly anti-Israel. They are not pro-Palestinian. The big difference being that do not want Palestinians to have a good life, you will have big problems bringing the conversation to that. They want to eliminate Israel by pushing the Palestinians into misery and using them as a weapon against Israel. Sorry, but that's the reality of Arabs' political position on Israel/Palestine. They are not looking for compromise here. They are not looking for peace.
This viewpoint does not match in the slightest with Kamala Harris or any part of the democrat party as a whole, in fact it's almost the direct opposite. It has the most overlap with extreme leftists ("tankies") and republicans (because of their viewpoint social issues, LGBT, repression of viewpoints, ...), and while everyone is 100% accurate to say republicans absolutely don't share this opinion, they just want to use them for votes, it's still by far the biggest overlap.
Plenty of muslims from Michigan voted for Trump, some even made it to the news regretting their votes. You can easily find a variety of news articles from different outlets about this.
Also, Trump is obviously awful and extremely pro-Israel, but so was Biden. In fact, more Palestinians were killed under Biden. I do think the Democrats are starting to shift though, they simply cannot support Israel any more and hope to win elections.
We love to ask the hypothetical “what would you do if you were in Nazi Germany?”, aside from being telling that is the only era we’re asked to empathize with, it turns out most liberals answer is: “be a Nazi”.
The only justification for not voting at all is some sort of belief in "accelerationism" that will lead to a revolutionary overthrow of the Nazis. Which is not just unrealistic, but also likely to have worse consequences if it did proceed.
(It's also stupid, because you can both vote for the lesser Nazi AND still keep working towards your overthrow or whatever.)
At the end of the day, we're talking about people prioritizing their own self-satisfying moral superiority over the actual greater good. Being an adult means sucking up and doing things you'd rather not sometimes. I'm going to keep calling people out on that childish thinking and illusion of moral superiority. The proof is all around us right now.
What is ridiculous is to think that "pro-Palestinians" are a monolithic body that voted and thought exactly like you. First of all, even among the "pro-Palestinians" the opinions on what does it mean to be "pro-Palestinians" range from one extreme to the other, and second, it is ridiculous, in my opinion, to assume that Arabs and muslims did not vote for Trump at all despite his pro-Israeli stance.