Bannon is not exactly the pinnacle of credibility. There was an expose I read not too long ago that proves they actively siphoned from the alt-right (the neo-nazi's) to push themselves to relevancy.
Bannon only cares about Bannon. When he came out of the White House he immediately started trashing them to everyone he knew. He's made a name for himself by pushing this perception that he's some sort of political magician and shafts others in the process to maintain this projection. That's his MO.
Here's How Breitbart And Milo Smuggled Nazi and White Nationalist Ideas Into The Mainstream
https://www.buzzfeed.com/josephberns...NBY#.vg08jK5wJ
Ivanka Trump Had Deal With Jared Kushner That She'd Be First Woman President, New Book Claims
http://www.newsweek.com/ivanka-trump...ew-book-769585