Isn't there always a job crisis in the U.S.? That is not an excuse to not have goals in life.
My sister briefly dated a coal miner. She really liked him, but she readily agreed with me when I told her that he wasn't an appropriate match (based on their differences in education/socioeconomic background/occupation). Sure, a girl or guy can go slumming if they want, but if you think a good marriage will be made from it, then you are delusional. Large disparities between partners will usually led to marital problems down the road.
Note: I have nothing against coal miners. My great-grandfather mined coal for a living. I am merely stating what can be backed up with statistics regarding marriage. Additionally, I interned with a Family Court Judge so I know the red flags for divorce.