No, I'm explicitly not asking that; I appreciate, of course, that, in the hypothetical example, there's a cost and benefit of each approach. I'm trying establish what the tipping point would be.
Let's say, for argument's sake that, insofar as rapes in Europe are concerned, the mechanism of reduction is that there are fewer men with appalling attitudes to women in the region; insofar as worldwide, let's assume that that the mechanism is that these men have a slighlty less poor view of women form their home countries as they do of western women, and the restraining influence of being in part of an established community.
Again, for argument's sake, if closing the borders of Europe to all refugees had: a) a reduction of rapes in Eurpoe of, say, 10,000; or, b) a worldwide net reduction of, say, 5,000, what would be an acceptable price for acheiving that in terms of each of the variables you listed: maternal mortality, child mortality, women's access to education, gender based violence, and child poverty.