The West has lost their moral compass. Christianity is in decline in most of the west and Leftism is becoming an increasingly popular substitute for "religion" in the West. The result of this is a lack of babies and a sudden need to "Fix" a demographics problem. The solution Europeans are trying is to import massive numbers of religious Muslims. The most conservative Muslims in Europe have more kids, and Muslim populations in general are resisting assimilation. The secular period of Europe will prove to be very short in the grand scheme of things. It's simply going to become Islamic instead of Christian.

I recommend reading "America Alone" by Mark Steyn.