What a horrible comment, if by "intelligentsia" you mean smart and/or educated people who contribute to the community. Those were the first to either be killed or exiled by such regimes.
Very few Western elites were pro-Mao. And general support for communism definitely had a class bias. (Any populism does, for very sympathetic and not-stupid reasons.)
But to generalize this to say that most of Europe's elite supported Mao, or even that American elites supported Mao, is simply unsupported.