now sir, you got this one wrong. for intellectually based people (let's assume most college people are), dating with somebody you don't have that much to say is meaningless and frustrating experience. same goes for (most) guys too.
The military attracts plenty of geniuses just like any other large organization. Simply by not admitting the least capable the Army ends up significantly higher IQ than the average high school. Meanwhile 39% of 18- to 24-year-olds and 65.9 of those who graduate high school were enrolled in college, so it's not all that selective.
PS: Yes, this means that large numbers of smart people don't think the way you do.
If that is the point the OP is trying to make, then why single out the military? And all that nonsense about the "right wing" (clue: militarism is equally distributed throughout the political spectrum).
Well I'm speaking of the political spectrum in the German army "http://www.welt.de/politik/deutschland/article109241172/Welt.... According to the linked article 70% are close to the CDU, which can be considered right wing, 14 % have extreme right views. I'm pretty sure similar things could be said about other armies in Europe.
Since the American political spectrum is skewed so far to the right, that it's ridiculous it might be true that American soldiers have views more representative of the population.
But they would never consider dating street sweepers or shop workers or manual labourers either, or anyone else they see as beneath their social status as "university students", despite relying on those people every single day of their lives. It's pure class snobbery, and this is why many people hold "students" in contempt.
Fortunately most grow out of it when they graduate.