Getting back to the original question: IF it happened at UChicago… here are my thoughts.
I dont think he would have been accepted to UChicago. Well, maybe if he applied ED1. But since he was clearly going for Harvard, he would never have done that.
If for some reason he was accepted, would he have gotten a rescission? I think he would have, however not without a huge public debate about people’s capacity to change, UChicago’s ability to change him for the better, and UChicago’s tradition of open debate. Arguments like “He can not be an antisemite since he is a jew and a son of two people who migrated to the US from Israel”, “He was 16”, etc will be rehashed 10x more than what is happening now at Harvard.
I guess, thinking about it, I am glad it did not happen at UChicago because it would have turned into a sort of a “crisis” about the identity of the school.