Ultimately the NCAA is a private organization, but is made up primarily members who are public universities.
To counter these measures being taken by the NCAA, the Republican legislatures should prohibit their schools from participating in NCAA championship events.
Can you imagine how the NCAA would react if Alabama, LSU, Michigan, Oklahoma and Texas A&M all refused to play in NCAA championship games?
The problem is, how the voters there would react.
Give us our circuses!
Problem: the best black players coming out of high school would vote with their feet and go to the Blue State public universities. There would be heavy incentive for them to do so.