football, seeing it as a symbol of toxic masculinity and undeserving of the resources it gets compared to other more worthy places for money, combined with demographic erosion on the West Coast of the type of people who would be interested in watching college football. Those two things on top of the even MORE long term problem of # of eyeballs in the PAC footprint, which is brought further to bear with the shifting media landscape from linear cable metro areas to simple number of eyeballs streaming your content.
There is really little they can do to save themselves from these problems. The little they can do, is likely too little too late. The only things they could have controlled were administrative support for football, and they should have expanded east when they had the chance.