I fully agree with you. Prostitution is a trade and in a free environment both sides of the trade are happy. Even if the prostitute is in a finically bad situation, the money she earns this way is probably giving her more comfort by solving problems in her life than she looses comfort by having sex, otherwise she shouldn't do it. I also fully agree that telling adult people what to do with their body is fascism. Ofcourse I am not talking about forced prostitution, but in that case the fact that it is forced is the crime and not the prostitution itself.
It's funny how feminists complain about prostitution, where women are actually empowered and can earn 10,000$/ month, meanwhile many women work in sweatshops are basic serfs for 100$ salary. So which one is the real problem?