The key to racism is that racists literally don’t know they are. They think it’s a specious category invented to shame them for simply being sensible.
This is an excellent statement. It also explains the stunning resurgence of racism in the U.S. It didn’t resurge as it never left but hid by being simply sensible in our culture and invisible to us. We blindly stumble on our own racism and have no explanation so can only reject its existence.