Free market, baby. When students don’t give a shit about your professional football team located on a university campus, they will buy and sell and buy and sell their student tickets to make a buck.
You taught them how the game’s played, with your trillionaire coach and athletes/pretend students and all. Bit late in the day to complain that you get to make a fortune but your players and the student fans get nothing but massive student fees to pay for your fortune.
Sure, the students will show up for the big games. They want to get drunk and excited and maybe win something. But they don’t give a shit about the team, and they’re certainly not showing up for blow-off games. Why should they? What’s your problem?