Like a few others above you're falling back on the old, "but other systems are worse so you should be happy with what we have" fallacy. And even worse implying that criticizing the current system and calling for change is the equivalent of lobbying for some other system like a command economy or whatever you think communism is.
You're making a number of assumptions, some of which may not be valid. First you are assuming that the system you have is the system you think it is. Second you are assuming that it cannot be made better or changed any way, to serve the people of the United States better and with greater freedom and opportunity. Third, you are assuming that the system you have today is the same system you had 10, 20, 100, or 200 years ago.
For an increasing percentage of Americans, life is getting worse and worse financially, and also physically. Such people are vulnerable to ideologies that lead to poor alternatives, including (currently) fascism. The whole point of the United States, its economic system, its political system, laws, justice, etc, is to make possible and provide a means for its citizens (people!) to build lives, families, work to provide for themselves, etc. Full stop. Yet the system we have today is failing a significant percentage of the population and has changed significantly over the last decades. Cracks are showing and getting wider. How should it be fixed?