Nonsense. What has made America exceptional is the Rule of Law, respect for property rights, and the ability of the individual to keep most of the fruits of his labor. What is detroying this country is government that is redistributing wealth by taking from one group and giving it to another, i.e., the welfare state. We have strayed from the original vision of our Founders and the Constitution.
We have established a culture of dependency on government and the belief that one has the right to food, shelter, medical care, etc. just by being alive. The welfare state is collapsing because government can no longer fulfill the promises it has made. The EU and the US are bankrupt or near bankruptcy. The chickens are coming home to roost.
Example: Investors/stock brokers are examples of capitalism. They make money for their clients, lots of money for people in congress, with insider info. This free enterprise system is not free for all to pursue. Capitalism is being destroyed by the unholy alliance between business and government.
Government is redistributing wealth and entitlements are one vehicle for that redistribution. Laws, in particular tax laws, are another vehicle for redistribution.
Not everything is a shining example of capitalism because of the distortions. To say so, makes the argument that capitalism is bad, socialism is good.