Yes! To us, sex-positivity is about people of any sex, gender or identity getting together and having mutually desired, satisfying and healthy sexual experiences. This cannot be achieved in the realm of prostitution as the sex itself is commoditised and the experience is based the one-sided sexual gratification of the buyer, who dictates what they are willing to pay for.
The harmful effects of prostitution on the person who is commodifying their consent and body are also well documented by credible institutions and bodies.
Sex should always be desired by both parties, reciprocal, safe and led by the enthusiastic and revocable consent of those involved. This ought to be the minimum standard we aim for in society. There’s nothing radical about this standard in the 21st century.