Honestly, if the position of the original author is that this is representative of everybody, not just Internet People, I think it'd be on them to justify that

Honestly, if the position of the original author is that this is representative of everybody, not just Internet People, I think it'd be on them to justify that view. They don't quite make that claim, though, and so I am not trying to formally refute it - I am just making what seems to be a logical note given the content as it stands.