It's social media, not a debating free for all. If I wanted to read shitty takes all day, I'd take an intro to debate class. No different then if you were opening a resteraunt or a store front or a bar, I'm not here for shit flinging monkey free for all's, I'm here for an enjoyable time, I don't care if some racist ass hole gets kicked off and banned, in fact I welcome that as do many others.
It's intellectually lazy to offload the moderation to your users. But I guess as long as you sell data and get a loony patron like parler did, then you'll be personally set.