If the things being criticised appear in many areas, it is hard not to draw the conclusion that they chose their target because it involves sex, and that is what they have a problem with.
If we are to talk about exploitation, then capitalism itself is subject to be attacked and prohibited.
If we work for a living, we sell our bodies to someone else for a time (40h a week or more). Does it really matter if we work on a factory floor doing parts, sitting and coding at a desk, or having sex in front of a camera? Labor is labor.
Sure its the christian 'sex is bad' in various stripes (puritanical to catholic to baptist etc). But in reality, its just different labor.
Now, capitalism in exploitive in that you generate X value, and you get a small percentage of your labor's output. Some owner is who collects the surplus.
So if exploitation is the problem, then its time to start looking at worker cooperatives, unions, banning shows like Shark Tank, and all the capitalist propaganda.
But no, its just 'sex icky'. We won't actually look at the root of exploitation.
The human experience has never been pure reason. A picture of a naked person will have wildly different effects than a picture of a dog, even though you could technically say they're both "just pixels on a screen". Reductionism doesn't get an argument anywhere; it's too commonly an intellectually lazy defense of the vulgar.
I prefer reductionist rather than the current standard of 'whatever 9 fucks think of it'.
Porn is way easier to define than obscenity, so I don't see that being a problem.