Here is a short summary of my experience(s):
80% do not really want to work at manual labor or factory work. They think it is beneath them.
80% cannot pass a drug test.
80% cannot prove they have a high school diploma.
80% think they are overqualified for any job but CEO of Apple.
I had an interview once, at which I was told that I was overqualified for the position. I told the HR person, "I promise to work below my ability." That didn't help.