That's a major philosophical difference. Are humans pure from the beginning or flawed from the beginning?
And what, if anything, does political stance, (left or right) have to do with morality?
What I can see is different with me and some other people morally, is that some believe man is inherently evil whereas I believe in essential goodness.
Also, there is difference between people who are moral absolutist and those who aren't.
Buddhists have precepts to follow, and one is not to kill. Nonetheless, a moral absolutist would say a woman should NEVER have an abortion, even if her life is in danger. A moral relativist would say, that while killing is wrong, letting a woman die so the fetus can be born may not be wise.
There is always the consideration of wisdom. It is not just rules, but how the rules are applied.
Non-violence as a moral value. That would mean favoring non-violent resistance for social change as demonstrated by Gandhi and MLK. The essential question of the OP has to do with moral absolutism, which the OP identifies with the right, her side. Whereas, moral relativism, would allow someone to see the evil in Bush starting a war without good cause. We may differ in what we consider a greater evil.
1. Non-violence falls victim to the 'law of the jungle' unless there are folks who recognize, confront, and use violence to protect the weak, such as you.
a. "People Sleep Peacefully in Their Beds at Night Only Because Rough Men Stand Ready to Do Violence on Their Behalf."
Attributed to Churchill
2. Human nature is hardly "good" anymore than any other animal's nature is good.
I recommend you pick up a copy of Desmond Morris's "The Naked Ape."
3. The difference is that the Creator has given intelligence to mankind, not granted to other living things.
Based on this intelligence, we are able to set up government based on checks and balances so as to restrain human nature.
Liberals have yet to understand this....
...see Ms. Truthie's posts.
4. Gandhi and MLK?
I hope you have merely overlooked the author of "On Civil Disobedience," the American author Henry David Thoreau...1849.
You haven't read it?
The silliness you suggest in "Non-violence as a moral value" must be based on the opponent against which you attempt to use 'non-violence' or civil disobedience....
Gandhi faced the civilized British. European Jewry faced the barbaric Nazis.
Get a grip.