Anybody who believes that the US invaded Iraq to "kill brown people" (or in general to kill people) is an idiot.
Anybody who believes that Obama's healthcare plan is about killing people is also an idiot.
Idiocy has nothing to do with left-wing or right-wing and both sides have their idiots.
For years we had the honour of observing left-wing idiots misunderstanding (and trying to propagate such misunderstanding) the concept of invading a country to end a dictatorship ("It's all about oil.") because they simply couldn't be bothered to learn the history Iraq (or about the price of oil).
Now we can observe right-wing idiots practice similar idiocy.