The biggest different is WA Unions have a nasty record of going on strike every fours years. Boeing can't keep shutting down production for 60 days at a time. The last time it hurt the company in a major way.
I didn’t realize the SC employees still had a union. I knew it’s a right to work state but I thought they voted the union out after Boeing bought the plant, I know they had an election about the union.
We’ve lived here about 15 years now, I well remember the union strikes at Boeing and especially the last one you mentioned and how it hurt them.
Thanks for the info.