A quarter of a million dollars for a degree in spanish; no job prospects; followed by 20+ years of loan repayment...

Is there any wonder that such degrees are unpopular?

None of the humanities majors improves your employment prospects, while all could be reproduced for free by reading maybe 20 books at your leisure. That makes the humanities more like a form of entertainment than a preparation for life, which is what most of us expect from college.