Then the battle is lost, because universities, at least in the USA, are the home of "free speech areas" and not letting people speak who a group disagrees with. When people are talking about "safe areas" to protect students from words spoken by a speaker, then criticism is dead. Political parties have more diversity of allowed thought. STEM is often criticized as unwelcoming, but humanities has become a place of "agree with me" or be condemned.
If you didn't forge your ideas in the fire of criticism at university, then you were cheated by others or yourself. The best teachers will make you argue both / multiple sides of a scenario and be offended that you parroted their opinion back to them. The worst teachers only see one valid way to think and are doing "missionary work" instead of teaching.
It is often depressing to read https://www.thefire.org