So Chuck, you're suggesting that at some point a fundamentalist Muslim government will get elected here and start imposing restrictions on us?

And Europe's failures aren't that they've had too much accommodation of people's differences, it's that they haven't had enough -- and have therefore failed to integrate people economically (in this case as always, idle hands in the form of unemployed young men are indeed the devil's playthings). And the historical experience is that when you ban things that people see as part of their identity, they invest heavily in that, as a way of defining themselves against the people imposing that ban.  

Look at my own last name: for about seventy years, an occupying power banned traditional dress, traditional music instruments and tribal affiliations in my ancestral homeland. Now, what things do you automatically think of when someone says the word, "Scottish?"