Many people find fat beautiful. Other people find thin beautiful. You can’t and don’t have to convince the first group that thin is the more beautiful, and vice versa; why would you? Individual preference is not about logic. Should people acknowledge all shapes can be beautiful? Of course. Should people think all shapes *are* beautiful? Hell no.
It’s not hip hop, but give Perfect 10 a listen from The Beautiful South (a UK band). Celebrate diversity not just in form and shape but taste.