Exploitation In Porn

So. A favourite argument among anti-porn activists is that the women in porn are exploited and it encourages exploitation of women by men. As a gay man, who doesn't have much of a vested interest in this argument, I often wonder how they square this argument with certain things (and this is not an attack, I just haven't heard the defense against these accusations):

1) Are the grown, muscular men featured in much of gay porn "exploited"? If so, who by? And if not, then are activists saying men and women do not have an equal ability to participate in porn as adults?
2) The rights and freedoms of women have only increased during the period of relaxation of laws censoring porn. Not only that, but rape has significantly decreased. So how can one say that increased porn usage leads to a degradation of society as a whole (I accept increased porn usage can have adverse personal effects on addicts etc.) and to less rights and freedoms for women?

Anyone out there willing to offer me honest opinions on this (again this is not an attack, I am just interested to hear some views so keep it nice and non confrontational please)?

Arguments from religion can be considered as already heard and understood.

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