"However none of this should deny that people are motivated by self-interest most of the time."
Sure, but that doesn't mean we should build a philosophy and our institutions around the idea that it's good! This is very different than "simply making an observation about human nature".
And the biggest flaw in libertarianism is the idea that humans make logical decisions, which is one of the most egregious denials of human nature I've ever seen.
And the biggest flaw in contemporary liberalism is the idea that these very obvious flaws in human nature are somehow transcended by the humans we elect to office.
"However none of this should deny that people are motivated by self-interest most of the time."
Sure, but that doesn't mean we should build a philosophy and our institutions around the idea that it's good! This is very different than "simply making an observation about human nature".
And the biggest flaw in libertarianism is the idea that humans make logical decisions, which is one of the most egregious denials of human nature I've ever seen.