Lets not forget the elderly population. While not all of them are democrat, large swaths vote dem/union because it is ingrained.
I still have one aunt left (my mother's youngest sister). She always voted Democrat, but since Obama came to power, she has become increasingly conservative. It was Obamacare that really opened her eyes and made her look more closely at the party and its harmful philosophies as a whole.
So maybe there is some hope.