There’s entrenched radicalism in colleges and government but those aren’t students. Those are adults.
You don’t have anything like the massive anti-war rallies of the 1960s because there aren’t any college students getting drafted and sent off to war. Only those who volunteer. The huge antiwar movement disappeared along with the draft. Not a coincidence.
The 18 year old vote was in 71. Draft ended and draw down of US troops began in 73. As usual, many things coincided to bring an end to the demonstrations.