Dry Rot in Academia, by Thomas Sowell.
At one time, 50 years ago or earlier, exposing students to a different viewpoint was considered to be a valuable part of their education. But that was before academia — and the education system in general — became virtually a monopoly of the political left.
Today one can literally go from kindergarten to becoming a graduate student seeking a Ph.D., without ever hearing a vision of the world that conflicts with the vision of the left.
Sowell compares the leftist oppression today with that “witchhunt” in the 1950s that the leftists so like to exaggerate:
As a young Marxist in college during the 1950s heyday of the anti-Communist crusade led by Senator Joseph McCarthy, I had more freedom to express my views in class, without fear of retaliation, than conservative students have on many campuses today.