As for the unemployment rate, you come on. Quoting that 4.5% figure is intellectually dishonest when discussing the value of a degree NOW, in the current economy.
People who were lucky to get a job years before the current recession are mostly doing OK and surviving layoffs,etc.
For RECENT college graduates, the employment picture is far bleaker. The truth is, employers are not hiring at nearly the rate they were before. I've seen the unemployment rate for recent college graduates(aged 22-25) cited at anywhere from 10% to 30%. 80% of college graduates finish school without a job offer in hand.
If it's so easy to get a job with a liberal arts degree, I would love to refer you to dozens of my friends who are desperate for any job at this point and can't find ANYTHING. I'm sure you'll be able to help them out.