I would also like to add that as a former union member I wouldn't be so sure that union members blindly vote democrat. I never did and few of my friends who are still union members do. I suspect that may be different among Detroit area union members.
Yes, if ever there was class warfare it's here. Interesting to note the difference between Ann Arbor and Detroit. They're both equally leftist in the last two generations, but one (Detroit) is a by-product of the other's thinking ala (Ann Arbor).