Well its more to do with economics, there are some vile creatures who do prey on the weak and vulnerable in places like Asia. But you have a very maligned stereotype image of what a sex tourist is and you want to promote that. I think it must be hard for you as working as a teacher in somewhere like Thailand in itself attracts alot of sex tourists who become sexpats. I mean you dont go there for the money.

The vast majority of males travelling to a place like Thailand are looking for a good time, like they cant get at home, alot of them are also fit attractive males and not the fat balding Germans stereotype.
Alot of these guys fall in love with a girl they meet in a bar and when returning home become her sponsor sending her money to leave the bar. In fact some of these girls can typically being playing up to 5 guys like this. So its still a dog eat dog world whatever way you look at it.

What about all the female sex tourists in the Caribbean 5% of which return HIV positive?