Oregon and USC's chants came WELL into the era of political correctness, cancel culture, and wokeism. And yet, students had no problems engaging in said chants.
I love the double standards of the left. They are my favorite.
But in terms of BYU hatred, it's the two in-state schools. Yeah, Wyoming hates us too and means it, but we play them so infrequently (and may not again any time soon) that it's rather irrelevant.
SDSU and The Show has made a strong push of late. I'd probably award them 3rd place.