I have been half-joking for a year and a half that maybe index funds should be illegal, but here is an almost entirely serious claim from Sanford C. Bernstein & Co. that they are worse than communism:
In a note titled "The Silent Road to Serfdom: Why Passive Investing is Worse Than Marxism," a team led by Head of Global Quantitative and European Equity Strategy Inigo Fraser-Jenkins, says that politicians and regulators need to be cognizant of the social case for active managemen ..
Do index funds put us on the road to communism?