Of course Nazi distorted the Nietzsche philosophy, but they would have said they expanded it. They were motivated by "good" just like everyone else. That's exactly the problem when god is dead and we're "Beyond Good and Evil". Eliminating the weak was defined as "good" by the Nazis. In their view, strength and weakness mostly had to do with physical prowess, though mental capability was still valued somewhat below that. I don't exactly know how jews made the "weak" list. I'm not an expert in history or philosophy... something I need to study more.
Nietzsche absolutely drew on Darwinian theory to formulate his philosophy; which was roughly the advancement of the fit, and the elimination of the unfit. While he wouldn't have called for the murder of weaker people, he had a low opinion of them and would rather not see them procreate into the future.
Nietzsche didn't place a lot of value on reason, rather he placed value on those things that advance the desires of the individual, regardless of the "truth" of it. If there is no right and wrong, then what is good is merely the thing that fulfills desire.
We've never seen laissez faire because it's never been tried... but I'm not a Libertarian anyhow, so I think certain regulations are necessary.
There's a difference between capitalism and crony capitalism. We've got a serious problem with politics being a career field, people pledging allegiance ans surrendering their mind to 1 of 2 political tribes, and both parties both exhibiting the same corrupt tendencies to cater to special interests and boost the reach of the federal government, and especially the executive branch. That's a failure of the people, not of capitalism.
Here's US GDP per capita, and it shows a strong upward trend, so I don't know what loss you're referring to.
Here's world GDP per capita. Notice that hockey stick.
Capitalism is the worst and most inefficient system of allocating talent and resources, except for all the other systems tried. I've yet to hear a proposal for a different system that would be more efficient.
Did you obtain those credentials yourself? I respect your arguments regardless of your academic certifications. Appeal to authority is a logical fallacy. While a person holding a certain title may be more likely to have correct understanding of things, it isn't necessarily so.