Where do you have your informations from??!
All this "Eurabia" propaganda is BS. It is correct that we Europeans have a problem with young muslims on our continent since they are usually undereducated and unemployed. This is the reason why they get aggressive - just as some minorities in the US (do you remember the Los Angeles riots in 1992?). But there is one thing for sure: They will not take over the power here. I.e. Most Turks in Germany are assimilated, peaceful and decent people. I employ some in my own business and I know what I am talking about. The much more fanatic Islamiacs come usually from northern Africa or Pakistan. Their part in our German populace is nearly zero. That does not mean that we have to ignore the problem but we should get the right dimensions.
Even in France or in the UK where the problems with muslims are much more severe, there is no sign that they would ever have the chance to take over the power. The problem is not religious, it is social. Quite a big part of those young rioters in France are usually that dumb that they left school as illiterates. In fact they do not have the intellectual potential to move anything in politics or economy. Therefore they never gain any power. They can torch some cars but they can not turn France into a muslim caliphathe.
You Americans seem have the same problem we have in Europe: Not every proposition in the media is the truth. Therefore you should be careful in believing everything.
Greetings from Lake Constance Germany.
Andreas