You got me. I have never even visited Europe.
I had/have a friend who lives in France. He told me years ago, whole neighborhoods in Paris were becoming impassable for women in western garb. And back in the day, Detroit had a sizable Arab population that was no picnic to cope with either.
But Tech_Esq, how is this different from other culture clashes? Surely by the time these immigrant families have had grandchildren, assimilation has largely occurred.
No disrespect, but I think your friend has been packing some weird stuff in his hookah. There isn't a single neighborhood in Paris like that.