@saab,
Saab,
You are conflating consensual prostitution (where a woman or man makes a free choice to enter a profession they find profitable) with sexual slavery. I support consensual prostitution. I also support consensual sewing of clothes and consensual building of electronics. I am strongly opposed to sexual slavery. I am also opposed to forced clothing manufacturing, forced harvesting of crops and forced electronics manufacture.
We agree about sexual slavery. What you want to do is take away the right of a woman (or man) to choose prostitution as a profession because they find it profitable.
I don't know about the 5% figure that you think you read somewhere. These figures used for political propaganda are often scientifically bogus. But let's assume that the 5% figure is correct, and that the number of waitresses who "like what the do" is significantly higher.
There is a reason that waitresses, for the most part, have better working conditions and except for rare and extreme cases aren't abused. The profession of waiting on table can be done above board. Waitresses and their customers aren't underground. No one has to hide.
Waitresses are free to leave if they don't like their job, and customers have an unrestricted legal and safe choices to meet their need for convenient warm food.
Listen to the voices of women who want the right to be prostitutes and who find it profitable. There are many, and they are telling you that they want their profession to be safe, legal and regulated for themselves and their customers. I don't know why society thinks it has the right to tell women they don't have this choice.
Of course there are also women who talk about the horrors of sexual slavery. I agree that sexual slavery is horrific and must be stamped out. The point is that providing legal, open and accountable ways to provide sexual services goes a long way toward ending sexual slavery.