And if you were in a position to fix it, what would be your solution?
How do you remove the liberal indoctrination from the colleges ??
I think he fails to realize that part of the reason why colleges lean left is that the truths learned from the study of all disciplines are self-obvious in support of the position leaned by the majority of people in that discipline.
People who study climate science all reach more or less the same set of conclusions.
People who study medicine all reach more or less the same set of conclusions.
As long as there are facts to be studied, there are conclusions that can be reached and the same is probably true of those who generally study political science, history, and government. In law, there are no facts to actually study and so opinions are widespread (in example on the SCOTUS).
No one questions why if someone studies history, they tend to favor democracy as being the best ruling solution for counties. It's something that seems generally obvious when you look at historical patterns in totality. The same is probably true in terms of the left/right split amongst history professors (which I heard was something like 20-1 or 40-1 favoring left). I find it hard to believe its purely a matter of selection bias and not a matter of what conclusions they naturally reach when they study history.