Also, I remember when Twitter was getting really big one of their prominent founders (May have been jack but I can’t remember) did an interview in which they positioned themselves that social media platforms should use “constitutional logic” (for those not in the states, that’s the USA constitution) when regulating speech in their platform l, which, for better or worse, depending on context and things, “kill all white men” would pass the fee speech test.

Interestingly enough I actually can’t find anything that supports the example you’re referring to here. On the other hand I’ve seen tons and tons of sexist, misogynistic, white supremacist tweets that are super prominent on the platform.