Listening to this song I had a flash insight about why I'm a rap fan.
I enjoy folk-rock and some other indie music but eventually it merges perfectly with my persistent melancholia.
The offspring of this merger is a kind of amplified existential nausea, and then listening to these tracks after they synthesized with my mood feels fatalistic, suffocating and un-enjoyable.
By contrast my depressive tendencies can't stick to gansta rap, like a bacteria that can't breed inside a plastic tube. Rap is teflon for my dysthymia, thus I return to it.