It is all common knowledge though. He hasn't added anything which anyone with more than 1 brain cell doesn't already know. There is no deep profound insights, he is no luminary. But the book is exactly what i mean, simed st young right wing men who feel their world is under attack by 'den liberals'.
He writes do much absolute ****** just to sell more books, exploiting his academic credentials as if it has any value outside his area of expertise. Nd it shows, because all of main points outside his actual peer-reviewed acedemic work have been completely torn down by actual experts in their domain. His whole anti-marxism and anti-PC waffle is completely meaningless twaddle, deeply flawed but written to stir up his fanbase who happily lap up whatever he regurgitates because it is exactly what they wsnt to hear and it comforts them to believe an actual academic supports their distorted reality.
He is openly transphobic and that is why the far right love his books. He openly supports islamophobia, misogyny and make wide reaching appeals to racists and white supremacist. That is just a hard fact.
As i said, a shrewd bussinessman that is good at marketing to the far right, incels and bigots