Not you, you transparent cunt, you don't really have a genuine concern for the welfare of refugees, you're much more interested in attacking what you see as lefty do-gooders, and if many of them happen to be women, so much the better as far as you're concerned.
For what it's worth, I don't think it's a great idea for volunteers in this situation to be having sex with refugees in the Calais camp, and I would hope that organisations and responsible individuals involved in aid work would be doing what they can to discourage it.
From what I've read, however, I don't think what's happening amounts to "widespread abuse" and for you to get all hysterical and act concerned is just another indication of your tendency to use any issue to jump on your usual leftie-bashing bandwagon.
It doesn't take Sherlock or even Watson to see what you're up to...