My parents raised 7 kids and a few adopted teens, put us all through Catholic school K-12 as well as college. They taught me, that...if you make an agreement, you live up to it.
I also learned that its important to be an individual thinker, not part of a groupthink collective like a union. And far from an office drone, I am an educated, certificated professional in my field with over 25 years of experience in management. I have to rely on the quality of my work, not my seniority number in order to have a job.
So.....if you make an agreement, you live up to it. If the company comes to an agreement with the union, and they breach it because they don't feel like it, that would be bad, just like not living up to a binding arbitration agreement. I can't see how you don't get that.
I guess its OK for anyone who enters into a legal agreement with you to not live up to it then?