I have a close friend who works for Boeing and splits his time between both the Everett Washington and Charleston SC plants. He hates going to Everett and dealing with the union can’t do mentality constantly citing rules and sniping at the “low grade” SC workers with all their ignorant caricatures of the South. The SC plant is a breath of fresh air with workers, although not quite as experienced yet, but highly motivated and happy to be where they are and having voted down joining the mechanic’s union at the plant.They never snipe at Everett but stay focused on getting up to speed.
And I have a close friend who works for Boeing and hates them - but is rooting for them to win against the NLRB. He would love to see the union dismantled.
In time all the leverage will be with the SC workers. If Boeing makes the mistake of not treating them well other employers will be eager to hire them.