Also worth noting this is the exact playbook the DNC has employed against Bernie. I still don't believe Biden will be the final candidate. They used him and the others to peel off enough support from Bernie to defeat him. HRC couldn't go directly against Bernie because she would've lost. Bernie supporters hate her too much.
I still think we're getting HRC from the Dem side.
So deploying Kanye in the manner you describes makes sense.
It's not as crazy as it may seem. Many blacks are still stuck thinking they can't vote for a Republican because it's stabbing their own race in the back. A black, Trump-supporting Republican can help break that spell. Not saying it would cause a mass exodus, but it could help, especially since a growing number of blacks have already walked away.
They're trying to push this phenomenon to critical mass.
Could have the opposite effect, and make moderate, white suburban liberals be thankful for patriot/militia types and the so-called "gun nuts"