Just like anything else in a society, it depends on the social conditions and average built-up values of an individual.
Built-up values? Yes, coordinated (mostly government-media) efforts can create any mind they wish.
In just a few years they are able to transform a hippie sample into Rambo style destructive machine, with winner-loser mentality.

In a socially stable society, where even 'failed' people can afford a decent life, there is no much tendency towards extreme solutions.
To summarize: Even if we accept the self-armament as a fundamental right, there will be huge difference in consequences between arming people in e.g. Norway vs. Colombia.

__________________
Vote Hussein, vote humanity