I think he’s walking a line. On the one side are people who want the US to stop all support until Israel stops, want the US to stop threatening the international courts seeking to hold Israel officials accountable for war crimes - essentially, want the US to treat Israel like we are treating Russia. On the other side is a powerful, well-funded pro-Israel lobby (which the Palestinians don’t have) and a traditionally fairly cohesive and influential pro-Israel voting block. Plus, Israel is our Ally, like officially; Palesteine is not.
He’s slowly, slightly shifting from full-throated support of Israel, but so far all he’s doing is withhold some ordinance. It feels as of all he’s doing is pissing off both sides, rather than shifting some support.
Honestly, I think he’s in a no-win situation. It’s critical for the USA that he win this next election - Trump is an existential threat to Democracy in the US. There’s a lot of money and influence he loses by not getting the pro-Israel lobby on his side, and who does he lose by continuing support? Are the disenfranchised youth going to vote for him if he pivots on Israel? All the folks who’ve been complaining (rightly) about the cost of living, housing prices, healthcare costs, loss of rights over their own bodies - all these folks who protest-voted in the primaries and are threatening to protest-vote in the general election… they’re all suddenly going to jump on Team Biden if he cuts off Israel? In enough numbers to counter what he loses from the pro-Israel lobby?
So I think the irony is that if standing with Israel means he can win the election, it’s still a better outcome for Palestine than if he loses. If he loses the election, Trump will tell Israel to just go ahead and glass the area.
Edit: Came across this article here today, which I think has basically the same view.