I think comparing a case like Zimmerman to a case involving confronting an active shooter (the topic of this debate) is an APPLES vs. ORANGES thing.
Look man... you HAVE A RIGHT to your opinions, I'm NOT here to judge you either way. We (people) are all different in our own way(s). No keyboard bravado here... I just don't think I'd feel good about myself if I COULD do something but CHOSE not to.