they'd all have to grant the right of return to what is now over half the Israeli population.
Right of return is not something the Arabs can grant, if they can they already give it to Palestinians and be done with it. This is something that the Saudi's foreign minister said in that interview. They will not accept the Palestinians as refugees because it is shifting the weights to them. That's the big middle finger the Saudi's gave to Israel. Sort out your own weights with Palestinians don't shift it to us. There's never been a line the Arab want to take the 'weights'.
it's just hard to believe the Arab leaders are these benevolent people who definitely listen to their people.
Depends on what's benevolence in here. If that means they give financial securities towards their own citizen, then the Gulf Kingdoms give it. If benevolence towards other Arabs that come as work visa, no they are not. They treated those Arabs from Yaman, Egypt etc not much difference then Workers from India, Bangladesh and Pakistan.
If they listen to their street mood, that's definitely what they are doing. This is why the Saudi's say no normalization with Israel can move on, as long as Palestinians issue not being solve. This is also why the Arabs not getting involve with Houthi's US lead operations in red sea. All those things they believe will aggravated their populations emotion, which basically increasingly pro Palestinians.
That's why I say it is only your dream the rest of Arab give giant middle finger to Palestinians. What happens now in their street and their officials stands, the Arab give giant middle finger to Israel, not Palestinians. If they aren't done that, they already accepting those Palestinians as refugees, knowing very well they will be their burden. Because Israel will not give them right of return. Knowing very well that's what Israel wants to emptying Gaza from Palestinians and shift the 'weights' to Arab neighbors. That's ethnic cleansing on Israel dream.