The moderate Catholics should be pushing for the investigation and excommunication of those who are making death threats over the crackers. They should be doing that before complaining about any perceived rudeness on our part, since death threats are infinitely more serious than political correctness.
Once that's settled, if they don't want us to consider them silly, they should be working on finding evidence that transubstantiation is real, and maybe come up with an explanation for the act that doesn't come across as creepy cannibalism.
As for my side, you can count on me to ban any atheists who make equivalent death threats. That's what this is about, after all: Death threats are wrong. I just find the crackers are a convenient method for flushing out the barbarians who would so easily resort to violence.
It's that simple.