I'm not entirely sure how the cam girl stuff works, but if they're just doing what they do from home and getting paid for it, to me thats alot better than them going to a studio and being coerced into doing things they don't really want to do
Men buy tokens, presumably so they don't feel as much like they are paying for sex.
The women have a stream that anyone can watch where they chat and do quite vanilla stuff, the men can "tip" in this or club together to buy a public show.
Then men can buy a private show, at a cost of around £40 for 15 mins (I think). The women do what the men tell them to do.
Its a bit like strip clubs/private dances except its not dances, it's sex acts and the man definitely gets to wank/cum while doing it.
I can see what you are saying re: coercion, but it's a very crowded market and so to make money the women have to do anything the men want with enthusiasm - and probably have to do quite extreme stuff. Also the sites take a big cut of the money and some women work from studios where they aren't allowed to say no to what men want in private shows.
But in any case, I would not be ok with my partner sexting other women or doing sexy facetime, and cams are the same, just with added spending of family money. To me it's one step away from prostitution.
It's left me with a lasting feeling that I didn't know my husband. I thought he adored me, didn't lie, was faithful and a feminist. In return I accepted some other aspects of his behaviour (he could be controlling and EA).
Finding out about the cams showed me he could lie to my face and I wouldn't know, he wasn't faithful and felt so entitled to sex he'd pay for it. I was married to him for 20 years and can't explain the damage its done - I feel like I never knew him.