I'd rather not waste a bit of energy on the latest oral bowel movement from Kanye West. Judging by the general reaction, there seems to be a resounding agreement in the fact that Kanye needs to sit down and shut up. Is it mental illness? Maybe, but I don't feel sorry for him. I think mental illness likely causes him to blurt out this nonsense, but he believes stupid shit because he's ignorant. Being a "genius" in your field does not make you a genius in real life; it makes him a fachidiot (see aslo Ben Carson).
I think this subject matter was tackled best by Mr. Eddie Murphy, from his 1987 concert film "Raw":