I don’t know the answer. With all the PC running amok everywhere, chances are VERY likely that W Europeans will just continue to die as the muslim population overcomes them over the decades.
And boy is whitey in for a shock when they do.
The only flaw I see in your logic, is that it will be decades. If Europe doesn't do an immediate about face, we will not recognize them in one years time. Are we going to start bombing European city's in our continued fight against ISIS? That IS where a large number of them fled, or should I say retreated? If our aim is to kill them where we find them (Syria?)...Dresden Version 2.0. Will our renewed NATO Alliance demand it? Will NATO even have the sack to request it, or to deny it to US? A little food for thought.