Slowly but surely, Bannon turned Breitbart into not only the most-read conservative web outlet but also the most incendiary one. It was happy to embrace fringe beliefs like birtherism and play footsie with blatantly racist notions of black criminality. It wasn’t interested in looking even faintly objective, instead inventing easily understood “narratives” of crusading conservative heroes and their many victories against the hated left.
Bannon’s Breitbart also realized that there was a large online community that naturally gravitated to Trump, a mix of people who saw themselves as far too radical to be accepted by polite society. Among them, conservative suspicions of diversity, inclusion, feminism, and political correctness had metastasized into something much darker.
This was the alt-right, a collection of racists, KKK, Neo-Nazi's, pick-up artists, men’s rights activists, and other noxious trolls of the internet.