at best you're just cotton-headed naive, at worst your in danger of ethnocentric and prejudicial thinking
in the revolutionary war, quakers forbid military activities, even though many quakers assisted the revolution through furnishing many needed supplies. they were not able to actually fight and still remain in their religion. the society of friends valued strong education much more than any other people in the colonial days, and still does to this day. if a member of the society of friends took up arms they were immediately cast out of the quaker groups in any colony, state, or country
one such man, who was cast out of the religion he was born into, was nathanael greene
http://en.wikipedia.org/wiki/Nathanael_Greene
why? because he became one of the greatest american generals to ever live, an extremely effective man of war. he studied voraciously tracts of war on his own initiative and self-educated himself on the methods of killing other men en masse to the point that it was his brilliant tactics and strategy that defeated the british in the south, and led directly to the conditions that resulted in cornwallis's stunning surrender, and the end of the revolutionary war
how is this possible given his upbringing? because his cultural upbringing is inconsequential, as is mine, as is yours, as is anyone's, on questions of basic human psychological potential for ANY human endeavour, violent or nonviolent, moral or immoral, just or injust
human psychology is human psychology is human psychology. the only voyage that matters is your voyage as an individual in this world, and it is the only morally and logically cohesive framework in which you can judge a person: as an individual
are you american? well, all americans are warlike monsters. are you muslim? well all muslims are unthinkingly obedient fools. are any of those statements fair? absolutely not, they are prejudicial. but this kind of thinking is a direct result of YOUR way of thinking, in which you hold arbitrary, minor and utterly inconsequential tribal boundaries as the master's of destiny
the truth: human psychology is a constant across time and space, and culture is but a tiny inconsequential tweak of it. there is nothing of the amish, of the canadian, of the brazilian, of the sikh, of the polish, of whatever, that is somehow unique only to that culture, society, or people and somehow determines their fate in such a way that it overrides basic human psychology