I know he isn't a fan of it. My point is just that his dislike of it isn't why Linux can't use it today.

To be honest that reads more like a list of complaints about how they didn't do the process the way he prefers, rather than criticism of the license itself.

The only point of actual criticism about the license that I see is that it is one way compatible with the Apache license. And the supposed ideology of wanting to absorb other licenses, though one could argue that the designers just wanted to have an easy migration path.

https://www.youtube.com/watch?v=PaKIZ7gJlRU - Linus states he hates it. He does say that it's a fine license, and that the freedom to choose a license is important. The video is worth a watch if you want to understand what people who disagree with GPLv3 dislike about it.