So the context of the article is he's talking about SHOW fans. That is, the people who were GoT obsessed the first few seasons and now talk shit about it.

“I don’t understand how people can come to hate so much something that they once loved,” he says. “If you don’t like a show, don’t watch it! How has everything become so toxic?”

I remember a blog post GRRM made sometime after 9/11. He was making fun of the TSA employees (or whatever the pre-TSA employees were at the time) and security theater. He's an old school, non-introspective lefty.

He's also a great author, made a ton of money, has spread it into new ventures, and good for him. I loved his damn books, I read 1-3 many times, and I've read 4-5 once each. I've read a lot of his science fiction as well.

He's not a slave. Yeah, I wish he would either admit he's done or finish the book, but he doesn't owe me a damn thing.