No it's not, it might be acceptable in a few societies but in a vast majority of societies across the globe sex work is both frowned upon and illegal.

You are naive if you think all prostitutes are willing participants that chose this as a career. Across the world forced prostitution/sex work is fuelled by human trafficking of women and minors.

In an ideal world human beings should be free to make their own choices based on their context and society free to judge them based on it's context. One can't have it both ways. One cannot have absolute individual freedom within a social substrate and be an accepted member of said society without adhering to the norms of the social contract, what ever that might be.