Shouldn't somebody with a username like yours at the very least have been aware that it was organized by white supremacists?

No because before Charlotteville the only time I encountered the subject of neo nazis was them being villains in a Don Johnson action movie Dead Bang - https://www.youtube.com/watch?v=EubAIqVb74E and maybe a episode of the X-Files. I don't know about them, talk about them or think about them whatsoever. They are a impotent pathetic husk of nothing that has no relevance in modern American life on any level. We are giving them more power then they deserve just talking about this protest.

He’s in his 30s but insists he had never heard those numbers associated with white supremacy before.

28 but regardless why does someone being older make them more likely to know the secret fucking code words of irrelevant psycho neo nazis? I don't know ANYONE who would likely know this info.

But where are you most likely to find him? Defending neo nazis in these threads.

Never defended them on any level. The genuine murderous neo nazis at the protest can burn the fuck in hell for all time.