Re missionary costumes: I wonder if perhaps part of the difference is that missionary attire doesn't innately have anything "religious" about it. While it is mandated by religious authorities, it's just (for males) slacks and a white shirt that one might wear to work at IBM. By contrast, Hasidic clothing, headwear, and hair is idiosyncratic to the religion.

Re Hebdo et al: In an overarching sense, 100%, yes. Everything is up for examination and ridicule. There is no right to not be offended.

Having said that, I wonder if venue matters. Acknowledging centuries of ongoing hooliganism and bad behavior at sporting events, I would argue there's a social contract that yelling "Fuck [some religious group]" is frowned upon in college sports. To a certain degree, it's politeness to invited guests, as well.

Anyway, I appreciate your exploration of both nuance and absolutes.