I think the University of Chicago would absolutely rescind a student’s admission over the kind of recent public behavior Kashuv had in this case.
First off, remember, as HydeSnark often reminds us, the undergraduate student body is far less enamored of free speech absolutism than the university administration. They would riot if a Kashuv were admitted with that in the public record.
Second, the administration are not so much free speech absolutists as academic freedom absolutists. There is nothing remotely academic-freedom related about Kashuv’s provocations.
The whole special culture of the University of Chicago, where people really do talk to one another civilly across ideological divides, is dependent first and foremost on mutual respect, a sense of courtesy and modesty, and a commitment to intellectual discourse. Those are exactly the qualities Kyle Kashuv’s behavior in high school showed him to lack almost entirely. Nothing in his recent behavior gives any indication that he has since come to understand how important they are, and how critical they are to sustaining a culture of academic freedom and non-censorship of unpopular ideas.
I believe in redemption and second (and third, and fourth) chances. Kyle Kashuv has a right to go to college somewhere. At some point in the future, after he has done something to indicate his behavior has really changed, I could even be convinced that he should be eligible to be a student at Chicago. Now? No way.