Then they would have to consider what beliefs said knob held that are red flags and that is a much bigger problem.
The only thing that could resemble a red flag was one of the discord people described him as anti-war, while working for the military. A pretty normal position for a 20yr old though.
If we're going to use the phrase "literally a neo-Nazi", I want to see swastikas or tattoos or something other than garden-variety hooliganism.