Why do you dismiss a scholarship and all the trappings that go with it (including exposure to NFL scouts) as compensation?
Your logic about people "just want to hate on [the] kids and see them not make anything" is absolutely ridiculous. It isn't jealousy, or any other reason you invented, but rather several reasons that have been actually stated. I didn't see anyone arguing about financial burden to the institutions, either. But keep arguing that as well as though it is one of the salient points made.
Money ruins good things. Because money leads to wanting more, and greed ruins EVERYTHING. It ruins good business, it ruins movies, it ruins video games. Because, as Jim Sterling put it, it's not enough to make some money, they want to make all the money in the world. No matter how much, people always want more.
It's why I don't watch the NFL with the huge egos stoked by equally huge paychecks, where multimillionaires compare themselves to slaves. Where a man trying to make a difference is derided for daring to be a part owner of an NFL team. You laugh at people who cite money as the reason they don't watch pro sports, then laugh away, because I don't enjoy pro sports at all, except the NHL, which is mostly devoid of the huge egos of the NFL and NBA.