Once a passenger complains to the cabin crew, the cabin crew is already involved. And in today's world, no matter what they do next, including nothing, somebody will be offended.
That's hit it on the nail. We have arrived at a stage in society where there will always be someone offended. And, indeed, making one person comfortable may make another uncomfortable. It may have always been like this but there was a time when the majority exercised mutual tolerance. These days the majority have moved from tolerance to being boo-hoo offended!
I hope that in the not too distant future all cultures will get closer to a common set of values, making this kind of conflicts less likely.
I doubt it. Even those of us in the same culture can't agree about anything these days. The lack of education in common sense and tolerance is the issue, not different cultures.