This is a great overview of the benefits and problems of free speech platforms without the immediate nosedive into the dogwhistle argument that seems to just be used as a thought/discussion stopper more than anything else lately.

I feel that it's vitally important that free speech spaces exist. Places to discuss "ideas that the majority may find offensive or horrifying" are important, but they aren't for everyone and they do by their nature offer spaces for "undesirable" people like holocaust deniers.