[LittleRedRooster]

Are businesses that only hire college graduates illegally discriminating? Or do high school graduates have a right to be hired by them?

No the high school grad doesn't meet the standard set by the employer if they require a college degree.
In the case of Clarett the qualification is that his high school class must have graduated 3 years prior to his being eligible for hire in the NFL.
The arguement can be made that the college degree is a qualification needed to perform the job while the 3 year rule has nothing to do with the abilty to perform in the NFL.
If the rule stated that the player must play at least 3 years of college football or Candaian or European pro football to be considered for the NFL then you can make the qualifaction argument but it doesn't, so the 3 year rule won't be upheld.

The NFL's three year rule is designed to do nothing more than keep players in school (the NFL's farm system) and keeping Universities happy so they will let pro scouts on campus to evaluate the players.

[Dog Gone]

But businesses are not required to hire all qualified candidates. They can screen them any way they choose that is not illegal.

What you are saying is you want to make the NFL practice illegal. Fine. But that's not the same thing as the rule being illegal today. It's not.

[kjam22]

Clarett will not make it in the NFL. He has no discipline, and refuses to accept any. Ohio State disiplined him for cheating..... Instead of accepting his 1 year of punishment, he just sued them. Now he is suing the NFL (who he wants to someday work for). Pretty bright to sue a potential employeer. What team would dare draft him knowing he may just bring suit if he doesn't get his way? Only a team close to the cellar. Then what are the chances that they'll come to an agreement on salary? He'll just hold out and sue them.