Alceste
Vagabond
Evidently you see sexual exploitation in the porno industry as a coercive relationship. If that's so, then I agree that it has no place in the business, or any business for that matter. I also agree that if the relationship between a porn actor and the powers that be are mutually agreeable then porn is a proper business.
Yes, prostitution in general is a consequence of economic coercion. Also, according to an interview with a porn star (and other sources) virtually all women in porn are adult survivors of childhood sexual abuse. They're messed up, basically, and porn perpetuates the cycle of sexual exploitation that they have experienced since childhood.
There are exceptions to the rule, of course, like genuine amateur couples and porn created by and for women, but the majority of available porn is women who were messed up by childhood abuse being sexually exploited on camera because they can't think of any other way to make a decent living.