Sorry bedell, don't believe in slippery slope arguments. They have no backing other than circumstantial evidence.
Porn is arguably one of the smallest medium that objectifies a person. We constantly see objectification in advertisements on a daily basis. Buy this cologne, get ot bang the chicks Brad Pitt bangs, buy this bra get to be Adriana Lima.
Lemme guess though, you think that kids shouldn't learn about sex, should be ashamed of their bodies, and so on so forth. I mean that worked so well for the puritans. None of them had shotgun weddinsgs. Part of being human is to be objectified as primarily we're all looking to mate, it's our primal goal. Man with the genes most attractive for child bearing bangs the woman who's got the qualities of bearing said child. Not objectifying women/men is a newer idea and it's gonna take a long freaking time to overcome.