How come prostitution, which boils down to a woman using her body to create pleasure for financial gain, is illegal - but boxing, which is people using their body to inflict pain and damage for financial gain, is legal?

You think prostitution is illegal... might I point out that Sugar Daddy and Seeking Millionaire and many other sites would like to have a word with you about 'prostitution'. The act itself has been around for years. And the sex trafficking will continue until they go back to legalizing it, in which will hurt sex trafficking at a high level. ~~~~~~ Consider this. You date a woman, pay for her meal, her drinks, buy her gifts and spend a ton of money on her, including a ton of attention. In return she gives you love, affection and sex. Prostitution simplifies it to a basic exchange as well as removes all the pleasantries that surround it. You want to do something about sex trafficking? Focus on outlawing pimps. If a girl is wanting to exchange her body for sex(i.e. stripper, porn star, etc) then by all means it's her right. But she shouldn't have to give her money up to someone else.