I wouldn't pay any attention to Kanye, he seems pretty delusional. Even if he did run for real, he'd probably only get some of the black vote and not much else.
Yeah but he wouldn't have any partisan support. He's probably very easily influenced by money and corruption, and he could be easily manipulated by special interests, perhaps even more so than our current candidates. The best option would be to vote for a party that more closely represents your views and then try to reform that party rather than throwing in someone who is deranged.
But at least some of the candidates have some policies that you or I would agree with. I don't think Kanye has any policies, and I don't think he knows what a good policy would look like.
Kanye has every right in the world to run for office, the thing is, I don't think he can win. American politics revolves so much around the Dems and the Reps, he would have to be the candidate of either party.