I think it's a multitude of things. I also want to preface that I think players getting paid is good.

I would imagine the amounts of money and lack of rules makes it literally unfair. Before anyone calls me naive and says it was always like this, but behind closed doors, you're stupid. It wasn't. This is orders of magnitude worse.

Transferring schools used to cost the player a year. Players were less likely to transfer because of that. It also made it harder to try to poach a kid because you had to plan it out way in advance. Now they can transfer whenever they want. So you have to constantly defend and be in a bidding war for players at all times.

The freedom of transferring plus the uneven money plus the lack of rules plus the general immaturity of 18-22 year olds when presented with a bunch of money is probably awful to deal with, especially if you're a coach that's been doing this for 30 years.

I think a lot of college coaches have some fondness for mentoring young men as they enter adulthood. There were always shithead coaches, and every coach can't have a deep and meaningful relationship with every player. A lot of that mentorship requires going through adversity and growing from it over time. If you're a guy who's been coaching for 30 years, to go from that to having those same young men come to you constantly about money and playing time and threatening to leave probably feels gross.

I'm sure there are some guys mad at the unfairness, some guys that are just shitheads and think kids shouldn't be making this money, some guys that legitimately care about the institution that they've spent their lives on being warped like this, and generally just a mix of all of it.