I think the important thing to remember is that "the usual swarm of destruction" is not an Arab thing, it is an Islam thing. It is the teachings of Islam in action, the fruit from the training in all the Mosques. It happens world wide, no matter what race is subject to it's influences, from the Asians in Indonesia, to the Arabs of Arabia.
This is not a race issue, Arabs are not stupid or evil people. Islam just makes them that way.
As it is making many Americans that way right now. When the fruit ripens on the American branch of the tree of Islam, you will see the same mindless destruction and murder from it there. As it is not a race issue, nobody is immune from it's effects. Something nobody believes until it manafests. It is very difficult for sane men to understand insanity, and much easier to deny.
Denial is what this insanity requires to breed in and multiply.
Yes, there is such a think as right and wrong. Our unwillingness to confront our own wrong ideals, is breeding a far worse cancer among us than abortion, homosexuality and pornograpy.
This one is not just corrupting, it is a terminal disease.