The threat to free inquiry and free speech at our universities today flows from the ideology of left-liberalism. As measured by campaign donations and other indicators, the faculty and administrators are almost entirely on the left wing of the Democratic party. It is hard even to imagine that anyone but a left-liberal today could be appointed the head of any one of our top twenty universities.
Leftism and liberalism are in tension, because the former prioritizes equality while the latter prioritizes liberty. Leftists focus on equality of result as opposed to equality before the law. They are also enthusiastic about many forms of social engineering to reach a vision of substantive equality that is every changing. Unlike those on the wholly collectivist left, left-liberals have traditionally been committed to preserving many of the tenets of liberalism– freedom of speech, belief, and the rule of law. But these liberal commitments often stand in the way of achieving their equality goals. Freedom of speech and belief empowers individuals to resist programs of greater substantive equality. The rule of law protects what leftists may regard as entrenched concentrations of power.
These tensions are playing out in the new wave of political correctness that is threatening our universities.