Dia Dhuit, mo chara!

I agree that the cultural argument would be pointless. An important thing to remember is that the kilt is one of the national dresses of the U.K. (via Scotland), the ancestral dress of some citizens of the U.S. (a former British colony) and some citizens of the British Commonwealth. Note that Germany is not included here. Germany has its own traditional dress. Furthermore, unlike Canada or the U.S. it is not officially a multicultural nation, so it does not have to respect differing cultural traditions.

Still, having said all of that, it's a crappy deal!