It is only relevant when they use that religion for justification for their illicit actions. If you can show me where the looters where looting in the name of Christ, I will buy the argument. Otherwise, that is lame and totally irrelevant.
I was contending your point on Muslims vs Christians. I have no idea if the looters are using their race to justify their crimes. I am not defending them regardless of their perceived justification.
You missed a great opportunity for perhaps the most famous of the gangs. The Mafia. Blacks need not apply.