I’m not against those who work for sex, but the idea to earn for a living doesn’t seem nice. IMO, sex should be for 2 people (or more for others who prefer polyamory) who wants to be intimate/romantic with each other. My point is money should not be the purpose.
While I generally agree with your way of thinking, one problem I see is that higher status sex work (i.e. escort services) are not the issue but are already very expensive. The issues get more severe the closer you get to the lower end of the spectrum. And there it gets difficult in judging or controlling what really is voluntary and equal exchange of values.
More governmental control might be a solution worth exploring. This could also be realised by legalising sex work exclusively in controlled establishments. However that again leads to higher cost on all ends.
Sweden has banned buying sex but not offering it, so only the Johns are punished if caught. But that is no real solution imo and I am keen on seeing the long term effects of this.