I don't think it's anger, I think it's fear.
[snip]
Even before our strict gun laws very few people owned hand guns, I can't imagine living in a country where fear of your fellow countrymen is the norm.
Speaking as a USian, I think it is overstating the case to assert that "fear of [our] countrymen is the norm" (if that is indeed your implication). Although I can certainly see where you would get that idea from all of the wingnut apocalyptic talk around here. I think that the primary motivation for preserving and exercising the right to keep and bear arms is to keep those in power just a little off-balance. At least, that was the original idea. Whether that is a realistic expectation given the federal government's access to modern military weaponry is another question.
Anyway, it is definitely not the case that most people walk down most streets in the US worried about getting their caps peeled by Their Fellow Americans. Some people, and some streets, yes, but not the vast majority.
Yeah, I know, Off Topic, No True Scotsman, Citation Needed, blah blah blah . . .