It’s a black thing. Whites have other interests and opportunities. The NFL gives the them one chance to take care of their families and their future. It’s sad so many of them end up broke.
It’s not a black and white thing, my school UF had a white player who this year played a significant number of plays for the first time in his 3 years at UF, he recorded one sack despite playing major minutes this year.
He went into the portal, transferred to LSU after demanding $45,000/month, guaranteed starting job and to play on 3rd down, all in order to boost his draft stock which is marginal at best.
The QB at Texas who is also white, could be playing for a National Title in a couple of weeks, his 4 years are up but he could come back for one additional year, several schools are trying to get him to transfer with a guaranteed one-year deal worth more than he would make in the NFL should he get drafted.
There is so much money floating around for college athletes it goes far beyond a black, white thing even for marginal players not a sure fire 1st round draft pick like Cam Ward.