Basically, International=Socialist Agenda to change America from Capitalism, and every national union that answers to an International party has to toe the line.
Or, as I used to say:
"I used to be a union democrat when they were the party of the working man."
"Now they are the party of the man who doesn't work."
When I had the opportunity to go into management I jumped at the chance. I was glad to get out after seeing the changes that had occurred: The people I respected fired when they complained about the gross corruption of the top cats, the takeover of the political arm by hard lefties and the steady drop in competence of just the day to day nuts and bolts work.
When even the friggin' unpaid trustees have credit cards and expense accounts, you know a union has become just a collection of bottom feeders.