I mean that a school that started for the express purpose of training Puritan Congregationalist ministers, and had mandatory Protestant chapel until 1926, now has coed dormitories, an LGBT club, and Atheists at the Divinity College.

Even for someone not particularly religious for the time(Calhoun eventually became a Unitarian), all that would be a little difficult for him to get his head around.

I mean, it could be worse. I imagine sometimes how Increase Mather would react to Harvard today, and I kinda understand where fundamentalist terrorists get their outrage from.