You're talking about isolated incidents. Not widespread acceptance. It takes a phenomenal amount of time and violence to ramp up to the point we're talking about.
And that can work when you're fighting people from another country, for example. It's another thing entirely when those people are citizens of your own country.
It's not optimism, it's realism. Following orders which put you at odds with the vast majority of your fellow countrymen is not "the easy way out".
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Wow. Of all the dumb statements I've read in the last few years...