I would largely consider being critical of sex workers (who do it in a safe manner) is largely just intolerance.
In American society, sex is in it's own corner. It's icky, immoral, unpure, and stands alone in it's perception. Violence, blood and guts, exploitation, injustice - these are all much easier for Americans to swallow than sex. A company laying off 500 people and potentially ruining their lives is business as usual, but a woman showing a part of her body to people who consent is unthinkable.
The reality is, I think, we all sell our bodies, and minds. And, out of all of us, OnlyFans models sell their bodies some of the least. After all, they are not at higher risk of heart attack. After all, they do not get carpal tunnel or arthritis. After all, they are much closer to self-employed than me. After all, they write their schedules, they define their work, and they set the expectations for performance.
That's not to say it should be celebrated. But I think we should view it honestly, for what it really is. A way to make money. People want to see other naked people, and they're gonna do that, so why not? And, is the human body really so repulsive that we have to degrade people for showing it off? I don't believe so.