Those aren't the only two options. The US never has had a purely capitalist economic system anyways. There is no perfect system.
Also I think you are unfairly characterizing the OWS protests. I don't think they are demonizing the rich for being rich. They are demonizing certain rich people for the way they get/stay rich (e.g., speculating on stocks with middle class money and getting paid millions even when they lose). By the way, this is coming from someone who "makes 6 figures and lives a nice life".