To me this is a sophomoric question. The fact is that in comparison to yesteryear, patriotism is UP on college campi.
You should have seen things back during and at the close of the Vietnam War. I remember in 1976, the USMC came and recruited on our small college campus in Wisconsin. Several people in my dorm, mostly (ironically) Jewish kids who argued all the time that Israel had the right to kill all Arabs within its borders to "defend itself," decided they needed to protest the Marine Corps presence.
So they picketed, and to keep things "peaceful" the college administration threw the Marines off the campus. The students congratulated themselves on taking a stand against "imperialism."
I think you'll find a HUGE contrast today, where military recruiters aren't routinely picketed, and most college students love and appreciate this country.
I think we are playing into the hands of the "peaceniks" when we attribute to them far more strength and influence than they actually have.