This article is horseshit. West coast, anybody? MC Shan? Schooly D? There were always misogynistic elements to hip-hop.
Rolling Stones? Chuck Berry? Bill Broonzy? Robert Johnson? There has always been misogynistic elements in American music, period.
Dinah Washington? Billie Holiday? Bessie Smith? Foxy and Kim didn't invent that image, either. It seems more drastic because the context of times had evolved, but those women were considered inappropriate tramps in their day. And they liked it that way.