Another's property over fandome. I'm guessing a lot of what you listed was done by LDS haters moreso than actual Ute fans. Anytime activity becomes criminal it has obviously been taken way too far.
But to my point, hating or blaming the whole fanbase because of what has happened by a few isn't fair either. I will say that most my experiences with Y fans have been respecful and only a few times have I been shocked by them. I will also say that LES is one of the most family friendly venues still around for visiting fans. So in most respects I would agree with you on Y fans. My point was that it is always the minority that gives the majority a bad name because of their actions. And that BYU is the same in that regard.