Excellent article. I've debated the minimum wage getting increased with friends and family -- I absolutely agree it should be increased.
I worked in the food industry in high school and college. I think everyone should work in the service industry at some point in their lives.
I take issue with the term "unskilled" being the reason to not pay someone a livable wage. It's a circular argument, if a job doesn't require a college degree it's considered "unskilled" yet I've had employees with high school degrees run circles around college graduates on my teams. I think it's an excuse to pay people less than a living wage. And now the value of a college degree itself is way out of whack anyway.
Regardless of the education level required for a job, I believe if someone works full-time they should be able to live on that wage. The fact that the job is skilled or unskilled shouldn't matter to a person's ability to pay for adequate housing, food, healthcare, and transportation.
To be middle class, you shouldn't have to go in debt up to your eyeballs for college in order to make a decent wage and provide for your family.