The Blind Racist

Alright, listen up, you chucklehead. You posted this, so clearly, your brain is smoother than a baby's bottom. So, you got a blind dude, right? And he's also a racist, which is already a bad combo, like ketchup on ice cream. The punchline is 'a not see' which sounds like the word 'nazi', it is a homophone. Get it? It's wordplay, you walnut.