The point is that there's a difference between regular labor and sex.
It's about stating a difference because sex work being seen a mainstream practice is arguably not a good thing. (be it legal or not, that's not related here)
But whatever, clearly there's a group of people here on HN who are taking the hard line "sex work is just labor" position and there's not going to be a rational discussion here.
Losing 10% of your net worth and losing 90% of your net worth are both traumatic. One is more so because it's to a larger degree, but it's not an entirely different thing, it's just a different amount. That's why we have different punishments for petty theft and grand larceny. Not because they're completely different crimes, but because they're different degrees of the same crime.