I would beg to differ on that. Capitalism has brought us many, many harmful things. Oil companies using might to muscle into developing countries, polluting them, and not doing anything to clean up, for one.

If you're going to blame the deaths of 100 million people on Communism, you have to attribute to Capitalism the same deaths caused by companies flouting the law, releasing dangerous products, and market based providing of services. Communism isn't to blame when someone dies because they can't afford healthcare.