My father and I used to have long talks about why Republican leaders have long worked to weaken public education and raise college tuition as high as possible. It is not about taxes, one of the few times you can say that about the wealthy.
No, in this case, it is all about keeping their throat on your little Johnny's throat while they send Beauregard Fuckstick III to private school. And the wingnut rubes go right along with it; virtually assuring their children will enter the workforce with untenable debt and their children's children will simply be unable to afford college at all.
There are other benefits, of course: