Actually I have. Students adopt a lot of stupid and superficial causes/slogans, which they soon don't give a damn about after they start working 40+ hours, paying a mortgage, and feeding a child.
Unfortunately, by then it's too late because the political forces that they have enabled have a life of their own. The radical boomers of the sixties are currently suffering from liberal policies they created. The Nazis were a minority in Germany but they were virulent enough that the rest of the political establishment was cowed into submission.