I think that we've all been slightly sidetracked by the issue of how the individual sex workers - male or female - are treated.
The reason porn matters is not because of the grim realities of life for porn actresses (tho I do think these realities are more frequently very, very bad than porn-positive fems admit).
It matters because of what it says to the rest of us (men, women, children) about women and their relationship with the world in general, and men in particular.
The diamond analogy doesn't work, for a very important reason.
The intrinsic appeal of diamonds is not that they were mined by poor blacks living in near-slavery conditions. If you love diamonds, you love them bcs they are rare, beautiful, expensive, whatever.
Whereas I would suggest that porn's appeal is precisely because it portrays - to varying degrees - the degradation of women.
This degradation word is provocative to some, and gets the arguments about choice flaming back and forth.
But my feeling is this.
'Women', in porn, are objectified - they are holes for fucking, trophies to be grabbed, opportunities to be snatched. or just receptacles.
They have neither identity nor volition:
they are never unavailable (unless a momentary unavailability would be more arousing to the audience)
They are not the masters of their own fate. They are the sum of their orifices, nothing more, and 'exist' only in relation to the male actor and audience.
This is true, though often covert, in Porn Lite. Go slightly deeper into pornoworld and this version of what a woman 'is' is explicit and overt.
Yes, this reflects the misogyny of the wider world.
But it reflects it and invigorates it. It reflects it, and extends it. And this is damaging and sad, sad, sad - for all of us.
Regardless of whether or not the girl is getting Union scale for gagging on a cock.
This Porn version of what being a woman is is very much in our world. Just ignoring it if we don't like it won't prevent our sons and daughters absorbing it.