As David Horowitz says, about the last place on earth where communism enjoys any popularity is American universities. The 20th century's 100 million brutal deaths and a billion ruined lives doesn't seem to make it onto the liberal score card. Remarking on communism's atrocities makes you somehow bigoted and oh-so-passe.
I engage college students in conversation from time to time. It is astounding how clueless they are to the biggest crimes in history.