Only time will tell what Democrats would do. I am well aware of the AIPAC control over both parties but I also think the Democratic cadres is slowly, but surely, moving away from Israel while the Republicans are much more in embrace of Israel. As a corollary to that: It is a fallacy to think that in a democracy like America things would stay the same. Just recently in your own country, the UK, electoral politics partly influenced by the demographics and Israel-Palestine conflict gave rise to the Labor after decades of the Tory control and the Labor is slightly less pro Israel--they may even arrest Netanyahu if there is some binding ICJ ruling.
I have been following the chatter both here in America and in Israel about the Nov. elections in America and there is absolutely no doubt in my mind that Israelis are wary of a Harris' Presidency. She is very much constrained by the AIPAC till the elections but IF she wins then I am nearly-certain she's going to be more fair then Trump would be.