Had the Jews been armed they could have kept the nazi thugs from beating and destroying their shops.....and shown others that the nazis could be kept at bay.....but the savagry of the nazis wasn't stopped because no one had the power...the weapons.....to stop them from intimidating everyone.....moron.
I think you are a little confused. Public reaction to Krystalnacht was largely negative because the Jews were helpless. As a result, the Nazis did most of what they did in secret from then on out.
If some poor hapless German had been shot by a Jewish shopkeeper, I don't think Goebbels would have passed that one up. That guy would have been "Hero of the Fatherland!"