Actually, I just had a change of thought.
When you are working on your Master's or PhD, do you receive a grade?
If the answer is yes, then your theory is wrong.
College grades are based on a standard. If you don't meet that standard, you fail college.
That means college is nothing but idoctrination - aka brainwashing.
How is the theory wrong? Colleges grades needs to be build on standards, especially at the Master's and PhD levels. How would you assess the student's accomplishments? These standards are set by what those professors think you should be learning. The state has very little to do with those. The exception being engineering and professional schools, and again, standards here are also set by people in those fields. Usually there is a thesis of original research and thought at the end of graduate level degrees.
Most colleges do not encourage indoctrination and don't purpose to indoctrinate their students. In fact, if you took advantage of you situation, you can not come out of a college and not learn to think for yourself. I went to a fairly rigorous Baptist university. It was far from . For the liberal arts classes, the professors presented lectures very neutrally, and discussions were student driven. As for the sciences, there is no side to pick.
Could things change, sure. But I thought if nothing else, my science classes were worth the money I paid for in learning skills from them.