Shouldn't the question be which is best for you and your family financially now and in the long term?
The one strike that will be against you eventually is the union will hold you accountable for caving in and going to work non-union. They have ways of finding out...actually, word eventyally get out. I know this first hand.
Make the right decision for you and your family. And keep in mind most sectors are not going to get any better but worse. And the union membership is decreasing. Eveyones neck is on the line and it's going to be that way for a long, long time.
"The American Republic will endure until the day Congress discovers it can bribe the public with the public's own money.
- Alexis de Toqueville, 1835