Realistically the same people are going to pay for it even if the rebuilding had been left entirely up to the Israelis. Realistically the same people if the Dem were still in charge of the United States government. Or did people think that all of a sudden the U.N was going to start paying for . . . well . . . anything?
Personally I am tired of taking it on the U.S. taxpayer's chin to rebuild everything that goes wrong in the world. But then again if Trump were to refuse to rebuild Gaza then those same Trump-hating leftists would immediately begin HOWLING that Trump's just letting them rot in their own juices.