Rails Against Paying College Athletes

Someone check Tim Tebow's blood pressure ... the ex-Florida star just went NUCLEAR trashing the new California law allowing college athletes to get paid -- saying it'll ruin NCAA sports forever!!!

"I feel like I have a little credibility and knowledge about this because when I was at the University of Florida, I think my jersey was one of the top-selling jerseys around the world.," Tim said.

"It was like Kobe, LeBron and then I was right behind them. I didn't make a dollar from it and nor did I want to because I knew going into college what it was all about."

There's more ... Tebow is FIRED UP -- but first, a quick review of the new CA law.

It's being called the "Fair Pay to Play Act" and it…