I agree with a lot, but here's a counterpoint and unintended consequence...
Once the NCAA is no longer in existence or having any kind of oversight, what happens to eligibility rules? What stops the new 32 team league from allowing unlimited eligibility, big contracts, free agency, etc to essentially compete with the NFL, not compliment/support/feed into it?
Why would Trevor Lawrence leave Clemson to get selected #1 overall by the Jags? Why would players choose to enter the NFL draft, where they give up their right to choose where they play, if they're already making NFL-like salaries at the place they actually chose to go live and play?
I don't know what they'd do, but I can't see the NFL standing idly by while their free feeder league, which has the most potential of any other league created to compete with them, basically becomes another version on the NFL, but they accept 17 and 18 year olds.