Most people don't have problems subsidizing the educational mission of the university. However, will all the money coming in through TV contracts, there is certainly well-founded disdain for subsidizing sports. Since tax dollars are collected under threat of force, there is certainly justification for being watchful of how the funds are spent.
Ironically enough, just a couple of months ago, a friend of mine that is a big UU fan was complaining about tithing funds being used to subsidize BYU sports. I was really shocked that an otherwise intelligent man would believe something so ridiculous. I thought only the most virulent anti-BYU Ute fans still believed that. However, he seemed totally oblivious that the UU athletic department was subsidized with tax dollars, which are not donated like tithing.
Go Cougs!!!!!!