Actually, in the case of Germany the U.S. is older as a country by something like a hundred years. The unification of something like what we now call Germany did not begin until the German Empire began in 1871. The Confederation of States was formed in 1781, and the Constitution (so U.S.) was seven years later in 1788. So depending on when you were talking about, either 100 years, or 93 years. Prior to that you don't really have anything that could be called Germany, rather you have separate German-speking states. It does not look like you understand history enough to be using it to make broad sweeping statements like you are doing.
Another major problem in your argument is that the U.S. is much bigger, population wise, that most countries it is going to be compared to. So when you say things like "richest", that is true for aggregate wealth. But it is not true for per-capita income (U.S. is #11).
And the statement "Capitalism and free markets have lifted more people out of poverty and lifted the standards of living of more people than any other system yet tried, combined" ignores that China has lifted billions of people out of poverty. You can make lots of truthful bad statements about China, and I certainly would not want to live there. But it does prove that statement wrong.
But even more to the point: Germany has a much more social-based system than ours. Clearly in areas of heath-care, education, workers rights, and welfare systems. But they are doing better than the U.S. in terms of growth, average wage, and unemployment. How does your argument survive that?