Except that America is not, and never has been, capitalist. Much like socialism or communism, capitalism has never been achieved. The closest I know any society to have come is the USA between the late 1860s and 1913. Yet, that still wasn’t a capitalist society. Half of the country was under military occupation, people were forced to segregate by law, and the USA was conquering people militarily and committing genocide in the Philippines. For capitalism to exist, people would be sacrificing in the present for investment in the future in a free market. There are no free markets, and the world operates under financialism where the future is sacrificed for the present via debt based currency and debt based capital markets. The most free market of the last 70 years has been information technology, and that is slowly changing. As it becomes regulated, the monopolies become entrenched, innovation slows, homogenization is enforced, and products undergo a diminution in quality as monopolies needn’t compete.
To this day, capitalist leaning societies outcompete socialist leaning societies. Just don’t go saying that either has ever truly existed. Socialism and capitalism are utopian fantasies. People are messy and our systems are too.