To Hijab or not to Hijab

[Viking]

I criticize you for entertaining unexamined alternatives [...]

That's not the way your post comes across to me, but rather "this will happen".

How to do it properly is a question local authorities would be best poised to answer. It could involve creating separate societies within camps, complete with schooling, healthcare and commerce in order to the keep the movement of people in and out of the camp at a minimum. Alternatively, it could involve rapidly integrating the refugees by e.g. launching special programmes to employ them. Or a strategic combination of the two.

My main assertion is that critical destabilisation of an Arab country caused by such an influx is considerably less likely than negative effects in European societies that are already evident here (and that could get a lot worse still; all the way up to the catastrophic scenarios you illustrate); negative effects that should not be more likely to occur in these Arab countries.