In fact, let me borrow a quote from Biden (some minor paraphrasing to fit the current context), West is a, "clean articulate black man, that's the story book dream man."
(Yes, look it up, when Obama was running Joe said something along the lines of how Obama was a the first mainstream clean, articulate, good looking black man to run for president)
If he were officially on the ballot, this is indeed what would happen.He does not stand a chance because he doesn't appeal to a lot of people from both sides. What is going to happen is that he ends up taking votes away from some people which helps Trump win.