Much of Marx's critiques of capitalism make some sense. The problem is nobody has come up with a better system for lifting people out of poverty.
http://www.worldvision.org/news/worldwide-fewer-people-live-...
Its just that wealth is being more evenly distributed and the U.S. is feeling some of that pressure.
Because poor people tend to get sick of their lot and revolt sooner or later. It's been a problem for monarchs through the ages.
I'm not sure exactly what you mean by "so-called progress".