Communism is a good idea, in fact even a workable one even in the Marxist version, it's just that few Communist states have been founded in good faith by the leaders, and any nation about to undergo revolution of any serious sort is by its nature incapable of supporting itself adequately in the first place. People have been quick to write it off in recent years, without really understanding WHY it didn't work. It's not the best system, and never was, but it ain't all that bad either.
And anyone who says that a Communist government CAN'T work, I give you Cuba, a tiny, third-world island with no real resources, now richer than ever and with a better medical system and comparable quality of life to the bastion of imperialistic capitalism next door.
Anyway. Yes, capitalism works. So do Microsoft, Nazism (in a technical sense), and the bubonic plague. It's worse than any of the above, and has killed even more than the second, by far crueller means. It's functional, but barely, makes next to everyone miserable except those who consider money an end in and of itself, and is based on a series of false premises and logic so skewed as to make Orwell seem unimaginative. Work hard in school so you can work hard in college so you can work hard at a job so you can get ditched after a few years of work for a company that doesn't give a **** about you and slowly rot. And, while you're not technically working hard while you're rotting, it ain't much fun, either. Occasionally, you screw around furtively, always peeping over your shoulder worried that you'll get in trouble, but only for a short time, then it's back to work for years. It's frankly repulsive- hollow, soulless, sterile. Death seems like a pleasant alternative to being absorbed in the capitalist machine- which is, in a sense, death drawn out and made much less pleasant. Not to mention all the people who don't even get the corporate drone option, and end up losing their arms in textile factories and starving to death while some third-level secretary in New York refuses to eat because she wants to look good for all the people who will never, ever notice her, and the drunken manager scarfs his heart attack in a pizza box. If the Antichrist came along and wanted to start up a reign of misery and terror for all humanity to top off the Apocalypse, he'd have to have a damn good imagination to beat the current reigning one.