There is literally no valid reason to leave bigotry to happen. "Free speech"? You're not the government. "Slippery slope, who gets to decide what's harmful, where does it stop"? How about we take a single damn step towards making things better for marginalized people before worrying about going too far? We're as far from "too far" as possible right now. How about we maybe try something and if it causes a problem we reevaluate?