This is not only because Israel and the US are such close allies... This is because Israel and the US have the tacit blessing of the major players in the region. They all want to see the Hamas and Hamas-ideological types diminished. Egypt, Palestinian Authority, Jordan, Lebanon, and most of the Arab bloc as well. They don’t necessarily like it, but they see it as necessary and no alternatives - Hamas and their brethren are not interested in peace not with Israel or with moderate Islam rulers. The more moderate middle east leaders want normalization and prosperity and peace.
That and the reaction to Putin calling for it.
Gaza will become part of Isreal officially and west Bank plo will become a country