I think you're sorely mistaken if you think that the economics of the US are anywhere near what Rand would consider to be Capitalism.
Have you even read her books?
Have you even read her books?
Every nation that has next to no government and every man is free to do with his life as he wishes is a giant shithole that teeters in and out of revolution. Want to see objectivism at work? Go visit Somalia or the Democratic Republic of the Congo. In those countries every man is free to pursue "... his own happiness as the moral purpose of his life, with productive achievement as his noblest activity, and reason as his only absolute." Countries full of people who are "all noble heros free to pursue their dreams". Too bad their dreams all involve mass murder and slavery to pursue personal wealth and power.
Hobbes was smarter than Rand. We have a Government to protect us from each other.
I understand why people would think that Rand says "you should only care about your own life and happiness". But that is bullshit. It isn't considered bad to care about and care for other people (look at Dagny and Hank/John/Francisco). What Rand is railing against is being forced to care about another person (which is what the government does to the producers by threat of coercion).
I'm a firm believer in Rand's theories, but that certainly doesn't stop me from donating my time and money to worthy causes. The important part is that my donations are made of my own FREE WILL and not forced at the barrel of a gun.