Few professors would dare to publish research or teach a course debunking the claims made in various ethnic, gender or other "studies" courses.
Why did all this happen? Partly it happened because of the lure of the path of least resistance, especially to academic administrators and faculty. But there was no such widespread surrender to every noisy and belligerent group of student activists prior to the 1960s. Moreover, the example of the University of Chicago showed that surrender was not inevitable.
The cost of resistance to the campus barbarians may not have been the only factor. Resistance requires a sense that there is something worth defending. But decades of dumbed-down education have produced people with no sense of the importance of a moral framework within which freedom and civil discourse can flourish.
Without a moral framework, there is nothing left but immediate self-indulgence by some and the path of least resistance by others. Neither can sustain a free society. Disruptive activists indulge their egos in the name of idealism and others cave rather than fight.
It's not just academics who won't defend decency. Trustees could fire college presidents who cave in to storm trooper tactics. Donors could stop donating to institutions that have sold out their principles to appease the campus barbarians. But when nobody is willing to defend civilized standards, the barbarians win.
Whether on college campuses or among nations on the world stage, if the battle comes down to the wimps versus the barbarians, the barbarians are bound to win.