I don’t know Steve Bannon personally, so I don’t know for sure he isn’t a white supremacist, but I seriously doubt it, because “white supremacist” is an over-used hate tag used by the Left to defame anyone who disagrees with them. I am not aware of any anti-Semitic statements made by Bannon himself. In fact, Jewish employees of Breitbart have challenged the characterization of him and defended him from charges of anti-Semitism. Some have pointed out that Breitbart Jerusalem was launched during his tenure.
The alt-right, or alternative right, is a loose group of people with far-right ideologies who reject mainstream conservatism in the United States. It clearly attracts some followers who have extreme views, whom I would characterise as racists. That doesn’t mean Steve Bannon is racist, and clearly his Boss Donald Trump is not: half his family are Jewish, and a significant minority of Black and Latino citizens voted for him.
So I’m calling your blog Fake News, because it is not true. Describing Bannon as a “manipulator” is part of a growing false narrative set by the left that Trump is not in control of his own administration. He is.