I think what we are seeing in this article is only the beginning of a far more serious problem. From my experience in Spain, at the very least, there seems to be a general distaste in the mouths of most native-born individuals concerning the recent immigration from Islamic countries. This comes from, as some people mentioned, the seeming unwillingness of these recent immigrants to meld into their new country and the culture that is included therein. As such (and this is all conjecture) I believe that what we are seeing in France will be merely the beginning of a greater European reaction against the Muslim people in their countries. This would culminate in a growing European nationalism and a further separation of native-born citizens from "the other." As this divide grows and as the disagreements become more and more "physical" in nature, as we see in this article, I would not be surprised to see a wave of anti-immigration laws passed. This would further compound the problem and result in even more drastic backlashes.
On the other hand, this same negative view of first-generation immigrants is something quite consistent in the history of the United States, and possibly the problems France is facing will pass as the second generation comes of age, as happened in this country. However, the difference may lie in the fact that, for example, the child of an Italian immigrant of the early 20th century wanted, in many senses, to "become" American and to adopt American culture. This same event does not "seem" to be happening in Europe, but that could merely be attributed to our limited scope of the present.