What needs to happen is a group of BYU fans file a suit against UNLV and the MWC. The UNLV fans' actions, slurs and overall behavior can be classified as a hate crime against a particular religous group. UNLV is at fault since it's their facility and the MWC is at fault since they sponsor the event, had inadequate security and failed to control the situation putting BYU fans at physical and emotional risk.
There are plenty of LDS attorneys out there. Problem is, we're just too nice.
Honestly, fans should simply boycott the tournament. They moved the Denver one because no one showed up, so don't show up next year. If Utah and BYU fans don't show up next year the stadium will sit half empty, all the hotels will complain and the buffet restaurants as well as In 'n Out will suffer. UNLV can't fill the stadium on their own.
We should all send emails into the MWC complaining about the venue and how we won't be there next year, how we now can't sleep at night because of the horrific experience, and how the risk of injury is to great. Intead, we'll happily watch it on DirectTV in the safe, secure comforts of our homes.