The goal should be to turn blue collar democrats to republicans. They need to get back to church and community. They do that in the rust belt and democrats never win another election.
I agree with you, but let's keep something in mind. The biggest challenge with this approach is that white blue-collar Democrats are probably one of the older demographic groups in the U.S. today. Between economic forces and demographic changes, you'll find that more and more blue-collar jobs today are being done by recent immigrants. It's going to be an interesting balancing act to make this work.