There are several schools of Jurisprudence (fiqh) in Sunni Islam. Most Imams adhering to the relatively relaxed Hanafi' school will most likely not say that gays should be murdered and thieves should have their hands cut off. A Shafi'i Imam would propose legal activity right now. Whether or not that constitutes cutting hands off or throwing people of buildings is another matter.

I would like to add to this that we often mistake the Wahhabis as speaking for all of (Sunni) Islam, while in fact, they represent a very small margin of a minority (the salafiyya). All Wahhabis are Salafis, but not all Salafis are Wahhabis. Terror cells currently operating in Europe and the United States are affiliated more with the Wahabbist interpretation of the Qur'an, while a large majority of Muslims are not Salafis or Wahhabis. It might be that a large group of young Muslims of foreign descent born in Europe are caught inbetween a rock and a hard place, or so they'd percieve. Looking for guidance, they look towards religion, and an interpretation of religion that constitutes behaviour not in accordance with European law.

What I'm trying to say here is that to say that they are Muslims is not incorrect, but we should take care in what differentiates them and other Muslims. If I were a peaceful Muslim and living in Europe right now, I have no idea how I'd feel. On one hand, the European society regards you with growing distrust because of your perceivedly extremist religion, and the religious community regards you with distrust because of your perceivedly weak faith.

And with the outright silly book called "The Invisible Ayatollah" that has recently come out in the Netherlands about the influence of extremist Muslim preachers in the Netherlands and the err, "leftist church" that has enabled them. Apparently, the muslim who wrote the book forgot that "Ayatollah" is a strictly Shi'ite term. The ignorance of some people keeps amazing me.