Hawking's Cause of Death

Alright, listen up, smarty-pants! This "joke" is a real knee-slapper... NOT! It's saying Stephen Hawking died because he's ginger. I think that the joke is implying that gingers die young. Which is stupid because people die because they suffer from a neurodegenerative disease, not because they are ginger. Also, people didn't like his wheelchair because it was too loud.