well sure, eden, we can say how misogynist em is. and how homophobic. and how, generally, ill and wrong. on the other hand, you can't just read this as some kind political speech or something: elements of fiction and autobiography, horror and comedy, freud and circus, dali and dre.

my mom loved valium and lots of drugs
that's why i am like i am
cause i'm like her

my mom loved valium and lots of drugs
that's why i'm on what i'm on
cause i'm my mom

(go find you a white crayon
and color a fucking zebra)

ok how many gangsta rappers are going to come up with "i'm my mom"? it's an ultra-compacted literary form, in which the status of any particular line or assertion is completely up fdor grabs: is it truth or fiction? does he loathe or love himself for saying that? the best analogues might be...henry miller, or like i say, edgar allan poe.
on the other hand, the fantasy life that is revealed is straight up sick in its simultaneously violent and libidinous content directed at women and gay men. it might be truer than memoir, in a way, and so just straight-up scary.
and i'll say this again: the real horrors of addiction have never been more carefully expressed, more intensely translated into art. rehab makes a million little pieces or whatever your favorite jive may be look false not only because it is, actually, false, but because it's insincere in its neat shaped narrative. with em, the fiction intensifies rather than undercuts the truth at the heart.