I’m not sure that not doing anything to change their behavior is a viable course of action. When western society and Islamic society come together, there needs to be some compromise on both sides. Otherwise, we’re going to end up balkanizing and eventually dividing.
Case in point, western society has developed cultural norms that people enter certain places with their faces uncovered. This is considered politeness but it also serves a very real security purpose and I’d suspect that this is behind the norm that we’ve had since ancient times. We don’t wear masks in banks, in legal proceedings, or in IDs. For centuries, people flaunting this societal rule were treated with suspicion.
Now comes a group of people with a different societal norm. The two norms directly conflict. When this happens, there needs to be give and take. This way the cultures merge and you create a stronger whole. Is that happening right now? I’m not sure that it is. I think the current philosophy of western society to accommodate everyone at the expense of western tradition is not actually solving the issues of conflicting norms.