Now, it is rampant everywhere! So is the fact that teachers ( ultra lefty ones ) lowering grades if a student doesn't agree with what the prof believes in, but comes to his/her own conclusions about things.
That happens in high school, too. I’m teaching my kids to learn how to write what the teacher wants to read. They have to make the decision as to what they value more: the grade or standing up for what they believe and providing factual info in their writings/discussion. As for college, when I was there, some profs didn’t want differing opinions regardless of whether or not facts were provided so that’s nothing new.