Why is the younger generation against free speech?

It’s bizarre, for anyone over 30, to see people such as Peter Tatchell, Stephen Fry and Germaine Greer being ostracised by the movements that they helped to create. Why are students ‘no platforming’ these people? In the latest case, with Tatchell, it was purely because he supported the principle of free speech. I offer some reasons why this trend might be happening, in a piece for Christian Today.