One doesn't get an education, one gets an indoctrination. That's the problem.
Students pretty much get what they want out of it. Some, not all, pick up some funny ideas to play around with and others suck the place dry in their quest for an education. If a parent is worried about sending an 18 year old off to college and having them return a raving commie after four years, then they didn't do a particularly good job in raising the kid.