The MSM, with only the recent exception of Fox, is a liberal totalitarian state. Same for many colleges. There are exceptions, but they are not the norm. Diversity in opinion is not encouraged.
As one who survived the silent spring and the ice age of the 1970s, I only have to note the current crisis of "global warming" and how those of us who disagree are likened to Holocaust deniers. Nice.
And "The Population Bomb".