Insulting and dismissing someone as a troll for defending Steve Bannon's character and denying his association with white supremacists. Further, calling for them to stop participating in the conversation and accusing them of stupidity.
Troll. 
It's widely understood that Bannon's a white supremacist and supports white supremacy. Why don't you just slime back under your rock and let the humans talk? As for stupidity, your behavior defines it.