This is an example of the Hippy Flip which has happened over the last several decades. The free-love communist stoners of the 60s grew up to become Leftist Fascists who will not tolerate anyone who disagrees with anything they think, anything they do or say. The people who call themselves 'tolerant of all points of view' are the most intolerant people on Earth.
You can see these fascists in every college campus and school across America. Students are 'forced' to lie about history and what they believe simply to pass the course. Because if they disagree with anything, they will be failed. The tests are not so much about how much a student knows, but rather it is a test of whether or not they have been indoctrinated and are onboard with the program.