It isn't, he's been showing this type of behavior since 2007. This rant is making a lot of the news because it's anti-Semitic, but if you've paid attention to him then you'd know this is very much in line with him.

Why does the NYT have employees with terrible takes. I'm pretty far left, but why the fuck do you have people who think racism against whites isn't real and that Ye is somehow helping Jews with his awareness. Want to thank Hitler next for creating Israel?

What's funny though is that the book is 100x worse about this, they are borderline cartoonish. The show does its best to humanize the main players.