[johnnyanmac]

>If you want a good argument against prostitution one route could be to understand the link between sexual expression and: intimacy, self esteem, love, relationships...

yes, but many actions have those links. this is the basis for the war on drugs that is just now ending in my country.

The argument isn't "does it affect people", but "does it CONSISTENTLY affect enough people negatively that it needs to be outlawed/extremely restricted?" Many of the argument I read against prostituion would be solved by... making it legal and having legal protections of workers. Or at least decriminalizing it for workers so they aren't punished for reporting abuse.