That's true, too, with the standard of commercial Hip-Hop these days.
It has nothing to do with that, most "normal" people like "Lollipop" more than "Wu-tang Clan Aint Notcing To F with". Hip Hop is young and somehow wild and it does not represent the majority of people. Next to that, it's still is a youth culture and that, ofcourse, is always a "bad thing". Thats why they dont like it.