A couple of things... First, this is where you are different than them. You will actually feel it when Trump escalates the genocide in Palestine. Those other people that were pushing people to not vote, don't give a shit. That already separates you from those people.
Second, this is just based on my own personal understanding of fascism, and history, but I have a feeling that you are going to be nothing but disappointed with the Democrats moving forward. Because they will be controlled opposition. Assuming they continue to exist at all.
They will exist as props to get nothing done, and become scapegoats for every problem the Republicans cause. So get used to that feeling. We are going to have much bigger things to worry about than political parties (assuming more than one exists).
Third, to answer your original question, Harris had a very thin line to walk with regards to the topic of Israel/Palestine. I'm not sure if you are aware of the extent of the influence that AIPAC and the rest of the Israel lobby has on US politics (every side, does not matter), but it's extreme. Just look at what happened to Ilhan Omar when she dared to mention the $$ involved in their lobby. And it has just gotten worse since then.
If Harris had come out in favor of ending the genocide, AIPAC would have ratfucked her and she would have lost. I think the fact that she signaled support for Muslims a day or two Election Day confirms this. It was the only way she could do it that wouldn't give AIPAC enough time to completely blow up her campaign.
There was nothing she could have done, so she tried not to talk about it.