I listened to https://www.heterodorx.com/podcast/episode-69-fediverse-foll... and I wonder what makes you say he's "an alt-right dude". He's a free speech advocate, but at the same time he thinks that the one of the great things about the fediverse is that instances can block each other to shut off speech that they don't find acceptable. He's a vegan that classifies himself as a libtard.