I think it would be a fantastic caricaturization of the fact we are living on the end times of a collapsing system. A hip hop popstar leading the United States would constitute the ultimate proof that the world has gone completely insane. At least we would have a president with plenty of swag tho.
It's not that ridiculous. Presidents like George W Bush wern't exactly qualified to run the nation. Kanye isn't going to get in but he should take Trump as his running partner / prospective VP.