My son always stands in ground in his beliefs, regardless of what school he may go to...
For his third year he went into the Cornell exchange program, and studied abroad in England...now, his major was Applied Physics Engingeering...but while in England he decided to take a history course, to see how the British were teaching world history and compare that to what world history course he had taken in America...he was rather shocked at what they were teaching and more than once, challenged the professor, and voiced his concerns and views over how the professor was teaching..I have to say, my son did alienate some students, yet the professor did admit, that my son had made some very valuable points, and that they should be considered...
Altho my son and his professor were probably worlds apart in their views, still the prof gave my son an A for the course...one can go to Cornell, and remain true to conservative thought...
Good for your son... he was lucky he had a just professor. My first year, I learned to keep my mouth shut- which proved helpful later on in law school. Law school, however, had blind grading, so, for fun on exams, I used to write outrageously Marxist analysis... I never crossed the line and grades were always good, lol.