Earlier quoted context omitted.
College is expensive because so much money is available in the forms of subsidies and loans. If the federal government stopped guaranteeing loans, and cut back on other subsidies, the cost of college would be much much lower.
No, College is expensive because it's horribly inefficient. Professors are paid terribly.
But saying college is expensive because it's inefficient begs the question: why is it inefficient? I'm inclined to think that the amount of federal money available is, at least, a factor...