Sure, but there are many racism-adjacent topics that are not so clear cut. For example, affirmative action is a "racist"--in the sense of discriminating based on race--policy, but there are serious, intellectual arguments made both for and against it. I put "racist" in quotes there because there's also presently a debate on the changing definition of racism: is it racist if a policy or stereotype is race-based but well-meaning and positive? Is "power" required, and does this immunize minorities from being racist? Is it racist to criticize a long-held cultural belief or practice such as circumcision?

I think all of these topics are worthy of open and honest debate. (Incidentally though, I think that the best way to shut down flat earthers and other conspiracy nuts is also through open debate...)