I think that the interview demonstrates the mentality Ellis writes about. I recommend that you read this to get a better idea about that. https://www.washingtonexaminer.com/bret-easton-ellis-tells-spoiled-children-liberals-how-to-deal-with-trump-he-was-elected-president-get-over-it
I really didn’t know anything about Ellis when I read that article. I’m reading the book now. Since I haven’t finished it I certainly can’t write a critique at this time.
I will just say that his frustration with the extreme intolerance and venom of the political left is justified which inspired me to buy and read the book. Given the subject matter I’m sure he knew that haters were gonna hate.