Religion and race are not grounds for the actions taken by these people. By "these people" I mean those degenerates who could be classified as extremists, or terrorists. That's a demographic independent of religion or race. There have been some in every race, and of every religion.
On the contrary, it is exactly religion that motivates these people. While certainly not all Moslems believe in this extremist view, the number who do is significant. What is even more important is to understand that even more not only tolerate it, but admire it's fervor. This is the point, Islam is fundamentally a supremacist religion. In the West, supremacist beliefs are generally decried, and rightly so, but this is not the case with Islam. It is not the West who needs to tolerate and change, but Islam. There are some signs of this in Egypt, and hopefully it will spread throughout the Moslem world.
Regards
Ken
