Ethnic cleansings a la Artsakh seems like the only way this will go now.
Vastly more people, with (unlike the Armenians in question) literally nowhere else to go.
It would be a catastrophe with few parallels since WW2, and I fervently hope that Israel's friends are making it quite clear - if only in private - that it is an absolute and total non-starter.
I’m not sure what else you think the money Blinken is offering Egypt is for…
Seems plain that at the very least major population transfers are expected. And I can’t see why Israel would agree to a right of return for people fleeing Gaza now when they haven’t done it for those who fled in 1948 for 75 years.