The problems in these societies are like the problems in Western societies when they conducted the spanish inquisition, or burned "witches" at the stake, or the king enforcing prima nocta on newlywed brides, or women being chattel slaves, or blacks being slaves, or Jews burning in ovens.
Yes, these cultures are violent, primitive and backwards. Just as our ancestors were. You change that by introducing law, property rights, capitalism and education.
You don't solve problems of violence with violence, unless you want to commit genocide. Unless one really believes that the only way to advance these people and give them chances at peace and prosperity is by killing large numbers of them off, without any consideration for justice, but rather delivering raw mindless carnage.
So your lame assertion that I think that they should be coddled like children is wrong. My point is, no number of guns will stop violence. You can't make people more moral with threats of force. (Isn't that the premise of the Islamists?)
People become more moral when they see the humanity (or inhumanity) of their actions.
Contrary to popular belief, the sword has accomplished little good in this world, whether wielded for good or bad justifications. All social growth and peace comes from moral evolution.