The child thing is one part of the puzzle. The other part of the puzzle is wondering how illiterate and unskilled somalis that dont even speak the language of their host/prey nation are supporting multiple wives and a dozen children. Who have houses. And who dont have the skills to be employable. All the while europeans who work 40 hours a week can barely afford to feed themselves and keep a roof over their heads.

Something just doesn't add up in that picture, right?

They are getting robbed blind, and all that stolen $ is being invested into terrorism against them to accelerate the destruction and attacks. That's not merely a birth rate problem, or a problem with borders or crime or elections but all those areas play a part of the whole.