So, because I know that Muslims frequent McDonald's and work there as well, it means I like their food???? WTF
I guess I can't possibly know this info due to the fact that, say, I live right beside the establishment and watch patrons going in and out, or to and from work every day.... or perhaps due to the fact that some of the muslims that work there are my friends, or live in my building... naw, it can't be due to that; in your mind, it HAS to be because I gorge myself on Big Macs.
As to your other claims about extremists walking the talk... it's actually a fairly common phenomenon that extremists publicly follow certain limits BECAUSE of their deviant private behavior. Wolves in Sheep's clothing, hiding in plain sight and all that. Anti-gay Republicans who are actually closet-****sexuals, Priests who are pedophiles, Abusive parents who are child-support workers, Police officers who commit crimes... the list goes on and on and on. And IN that list, of course, we find religious zealots who use their zealotry to mask behaviour deemed unacceptable in their respective cultures... such as booze, or licentiousness, or eating non-sanctioned foods.
Furthermore, it's common for individuals with deviant perspectives to seek out and form legitimizing groups with others who share the same perspectives. These groups are known as gangs, cults and sects. Their purpose is often to provide a safe haven for deviant behaviour by publicly claiming one set of beliefs while privately engaging in an entirely different set of activities. The members of the group are able to protect one another by vouching for each other. It's an interesting sociological phenomenon worth studying, as it occurs as subculture in virtually all power cultures. If you're interested, I recommend doing some research on "power and deviance," "workplace deviance," and "secret deviance" for starters.
EDIT: On the subject of Suicide... again, it's a form of deviant behaviour often linked to feelings of inadequacy and poor self-image. In fact, it's more likely that a member of a deviant subculture would commit suicide than a member of the normalized culture. As such, it's not altogether surprising that some deviant groups rationalize suicide within their belief structure... and that it is fully compatible with the hedonistic/deviant behaviour attributed to the particular group of extremists in question.