Sure, if you were in a dojo practicing martial arts - an environment that is safe where engagement has clear rules and often a judge - then it's a fair point to make. So if you are in a very specific context that is intended and structured for open and fair debate (e.g. a debate club), that's a fair argument.
That begs the question of whether a university is such a place. Undoubtedly some of it is. But I do not think all of the university, all of the time, is. Just as going into a gym and doing a judo throw on someone in the middle of their yoga class is not right, even if the gym has judo classes.
So I think there is a spectrum from all rules to no rules and that most, if not all, places of human interaction have some level of formal and informal rules on how we expect others to behave.
I don't ask this facetiously, as I studied intercultural communication in college and have lived in a lot of places, often asking myself how much do I stay in a place and try to change the rules versus leaving to find a place where the rules already align with what I want.