Re the 'cartoon world' that Marc mentions - I agree to a large extent with that (plus the Death Row book sounds gripping - for some reason I'm still obssessed with the goings-on at that label), certainly as regards gangsta rap. But I also think that it's something to do with becoming desensitised to it all, given that derogatory comments against women have become almost de rigueur in mainstream hip-hop since G-funk took over the world (or even before).
Interestingly (as these are more obscure trax, I have no idea what the female populace thinks about them), I find far more visceral and potentially 'offensive' earlier hip-hop songs such as Slick Rick 'Treat Her Like a Prostitute' and Ice-T's '6 in the Morning'. Or even Ultramagnetics' 'Give the Drummer Some', with its infamous couplet 'Switch up, change my pitch up/Smack my bitch up, like a pimp'. Maybe it's because the music in these tracks is more cut-up and more aggressive itself, or maybe it's because these seem less like fetishised cartoon threats for commercial gain, and more like random misogyny dropped in for the sake of it.
It's doing my head in trying to figure this one out, actually.
I'd certainly distinguish between sexual coarseness (whether by Khia or by Dj Assault) and threats of violence, tho'.