I would think that Flagg Hall would give anyone having spent substantial time there PTSD
[at least when I was at Illinois, IIRC, as my roommate and other architecture students pulled untold numbers of all-nighters there.]
Your point is well-taken but not an apposite analogy, IMO. A symbol of the university, cherished for many decades, and paying homage to the aboriginal inhabitants of the land on which it sits is several orders of magnitude more powerful, relevant, and important to the institution than a utilitarian building. Snyder and Scott Halls nearby are dear to my memory but the day they both meet the wrecking ball won't be a sad one for me, nor for the many who lived there or the university.
I'm still waiting for the moral outrage emanating from Caucasian pipefitters and farmers everywhere to eliminate the caricatured mascots of Purdue and Nebraska. And whenever I've been in the southeastern Peloponnese, and locals learn I'm American, their visceral hatred of Michigan State is palpable.
We never had a mascot (thank goodness.) We had a symbol. And a small, enraged, politically-motivated group of opponents beginning in the late '80s. Such is the power of lobbying in general: the motivated, organized, concentrated, and vocal few easily outweigh the placid and dispersed supportive majority. That's what the CI controversy was always about. Let's not kid ourselves otherwise.