I don't think it makes us animals to allow people on the other side of the world to fight through their own problems. In fact it keeps us from treating THEM like animals. It keeps us from telling us what they can and can't do, what leaders they can and can't have, etc.
And I agree with you up until the point where it stops being a matter of self determination and becomes a matter of a large group of people being slaughtered by an egotistical asshole.
It always amazes me how people can make up obligations to people thousands of miles away they've never met while not being bothered by the true obligations they have to their neighbors and fellow countrymen that are often forgotten.
Some things are a lot easier than others. This is something that's actually fairly straight forward and it's something we're occasionally quite good at. Changing things at home is a real bitch. Due to the scale of problems and limited possibilities to improve things because of the system we're confined to, I can't think of too many things that are going to have as large and immediate an impact as keeping 10% of the population of Benghazi from being put up against the wall. From a human decency standpoint, this is a damn good bang for one's buck.
By way of comparison, 7SB mentions Sudan. Figure out a solution to that mess where we can just blow up a few military units and get back to screwing up our own country, then people will be just as gung-ho about that. One's a clusterfuck, and one's a few weeks of backing of the French and the British while they blow stuff up.
The reason I keep thinking of this as an obligation is because it's such a simple matter to tend to. To ignore it would be unconscionable. Frankly, I'm annoyed that we've been among the foot-draggers in this.