I must admit, I cringe every time I see the word "kid" posted as it relates to mature young adults. IMHO, many cadets are decade+ more mature beyond their chronological age. To more than a few, it's condescending. So personally, I never had a "kid" that went to USAFA.USAFA and all academies should get the best kids they can get. Period.
I think what's going on is few levels deeper than your viewpoint. Using your logic in combination with an analogies that I happened to be staring at, women must be inferior doctors in several disciplines. Because 88% of all cardiologist are male. Additionally, 80% of all Ophthalmologists, and 96% of Orthopedic surgeons are male http://www.beckersasc.com/gastroent...ve-physicians-70-statistics-by-specialty.html . While 80% of the women are OBGYN's, only 20% of women make up academic department chairs http://www.medscape.com/viewarticle/838036 . To me at least, it is obvious that 20% of the male OBGYN's are not somehow better leaders to get 80% of the spots http://www.beckersasc.com/gastroent...ve-physicians-70-statistics-by-specialty.html .USAFA and all academies should get the best kids they can get. Period. If that includes the proper mix of diversity, then wonderful.
There are several reasons why white males dominate the service academies. AND, USAFA is spending money to get the word out because as you heard from the posts above, some recent cadets barely stumbled on the opportunity. So yea, I see why they are advertising. They should be.
2nd Disclaimer and before I am pigeon holed into an liberal ideology, I've have never voted for a democratic in my life. I'm smart enough to know that it's not as simple as some people want to believe.