We already have illegal speech, and this slippery slope you’re so afraid of hasn’t appeared. The boundaries seems pretty well contained by social convention and

We already have illegal speech, and this slippery slope you’re so afraid of hasn’t appeared. The boundaries seems pretty well contained by social convention and contract. Stopping people from saying the n word online isn’t going to lead to the fall of democracy. In the upside down hypothetical future where we decide as a society that “akshually racism is good”, nobody will be getting arrested for saying the n word by then. Don’t worry so much about far future hypotheticals, worry more about concrete harms being caused today.