Diversity is multifaceted. People with correct points of view can be less diverse than those who are wrong because there are many more ways to be wrong.
Podcast: Patrick Collison has a Few Questions for Tyler (Ep. 21 - Live at Stripe) | Conversations with Tyler
Tyler once wrote a blog post saying, "Well, there's a lot more diversity amongst supporters of Trump than supporters of Hillary Clinton.", which got him a lot of trouble. People usually think Democrats are more diverse, but many kinds of diversity exist. Tyler posits that while Democrats prioritize ethnic and racial diversity, non-Democrats may see diversity regarding geography, occupation, or perspective.
Here's another way to understand the multifaceted nature of diversity: people with correct points of view can be less diverse than those who are wrong because there are many more ways to be wrong. Therefore, being entirely right about something can sometimes indicate a lack of diversity, even if the members feel they are more diverse in areas like religion or ethnicity.