Patriotism, or the blind loyalty to an obtuse and unclear set of principles paired with some tatters of colored cloth is what passes for morality in our society. This isn't a trend but rather the best humankind has ever been capable of. The day when patriotism is seen as the moral evil that it really is will be the day that mankind is on the brink of moral evolution.
The generation of college students that exist in our world today, on a whole, exhibit about an eighth of the patriotism that this 1861 class at the University of Mississippi did. In today's world, few college students are even able to hold an intelligent conversation about their own government, let alone enlist in the organization that defends it.
The Civil War is the only one of its kind that we Americans have ever experienced - here's hoping nothing of the sort occurs again. There are many college students that enlisted very shortly after the attack of 911, and over the years as more and more wars are fought, there is always a tremendous show of patriotism across campuses holding rallies for our armed forces. However, the actions of those students in Mississippi definitely take the prize for bravery.
First of all, such acts today are inconceivable as they are pointless in the age of professional armies, especially the US Army, the single most overpaid, oversized over gunned force in the planet. Second, human life holds much more value today that in those years, at least that is the prevaling opinion and culture in the western civilization. And third, and most important, system has been set up in such a way to ensure that elites of USA always have a steady influx of poor, disrespected and futureless individuals to fill in the ranks straight after high school and fight and die for whatever the elites decice is desirable at the current moment. So, no, students, with at least half the brain, would not go today en-mass voluntarily and die for the oil in opposite side of the world.