i do not know where you get that impression. antisemitism, conspiracy theories and general racism are soooo common if you just browse one of the public feeds on primal, ditto etc. not to mention like 1 in 5 posts are just bitcoin posting.

we do have instances of fascist chuds on ActivityPub, but they’re at least a little less easy to run into if you go to our equivalent of a public firehose like mastodon.social