Yes, skyofblue, I understand you believe you've rebutted it. You haven't.

I've been to many so-called "no-go zones" in Paris; my hotel bordered one in my last stay. Women got off buses and walked home at night, I walked and bicycled, life went on,

In my experience, the concept is perpetuated by people who hate both islam and muslims. People like Daniel Pipes who wrote the article you just quoted from. People who see a terrorist when they look at a woman wearing a headscarf.