We’re discussing a book and the ideas contained therein.
Churchill was a drunk and William Shirer was an apologist for Stalin. Yet, they both wrote outstanding histories of WWII.
I can name a lot of geniuses that were terrible people. That does not mean their work is worthless or should be discarded.
Evidently, you’d shoot the messenger, no matter how accurate the message, because you have a problem with the way the messenger lived their life.
It’s a terrible book by a mean and nasty person.