Why, because he challenged her use of hate speech? He hasn't said anything wrong at all.
The fact Azealia is standing so strongly behind the use of "******" astounds me. I understand that words only hold as much weight as you personally allow, and I'm not offended by what she said, but the word is still classified as hate speech towards homosexuals.

The tweet where she mentioned Obama and the Pope was pretty dumb, because that could be said for so many racist and homophobic remarks and that doesn't make it right at all.