SJS,
I’m not defending their actions, I didn’t see the sign, and I have no idea if it was done l’sheim shomayim or not. Your analogies, however, are way off. You can’t compare right with wrong, just because it’s someone’s opinion! You can’t compare my lack of sympathy to someone who puts up an inappropriate picture to sympathy for a shul on which a swastika was painted; it’s a ridiculous comparison, unless you don’t believe that anything is inherently wrong.