rabbiofberlin,
Actually the ruling of “Yahrog V’al Yavor” disallowing people to go to the army is very much a Halachic Ruling.
The Gedolim who ruled as such made their feelings known quite clearly they feel that thethe underlying reason is cause to declare it a “Shas Hashmad”.
Now the classical case of “shas Hashmad of “araksa d’misana is
something that you would feel has noting to do with halacha, it was merely a mode of dress. Yet Chazal make plain that Shas Hashmad refers to everything.
Now of course you disagree with the Halachic reasoning of the Gedolei Yisroel, however instead of admitting as such you chose to say that it’s a political statement instead of admitting this is Rav Shteinman’s halachic take on the matter.