If that were my kid, I would go to that campus, grab him by the scruff of the neck, kick him in the butt, and take him back to class or his room - and explain to him again about some of the realities of life in the United States of America...then I would chide him for being disrespectful, and explain that’s not how you go about changing things you don’t like in this country - so sit down, shut up, and hit the books...or go get a real job!!! but alas, there are no parents that are going to do that in this day and age, now is there??
A parent like the one you describe....doesn’t send his kid to Rutgers.