Medical symptoms of damage to the right side of the brain: https://www.flintrehab.com/right-hemisphere-brain-damage/

I don't really see a lot of people ignoring their left sides out there or unable to recognize faces of friends and loved ones.

However, absolutely any idea or theory that ends with ". . . And this is why we can't do anything about climate change or political polarization" can usually get a non-fiction writer published these days, and this guy fits the bill.