Part of my family is from Michigan, and during a visit yesterday, this was part of the discussion. I was told that, what I didn't understand was the pervasiveness of the pro-Union attitude and that it had been instilled now for a couple of generations. It was described as "us vs. them" at a visceral level...with "us" being the unions, and "them" being Republicans, management, banks, foreign car manufacturers, and anyone who drove a foreign car.
Their leadership is drawn from their ranks, and is rewarded for perpetuating the fiction and the conflict. It hasn't helped that Wall Street spent a couple of decades looting the productive capacity of America with leveraged buyouts and coroprations have routinely unfundered benefit plans. I still remember when GM replaced its engineering management with bean counters...but that is another rant for another day.
The conclusion is inevitable. FDL production for Mercury is going to suffer horribly during the transition to Oklahoma. Thankfully, a lot is automated and hopefully there are quality controls in place to limit the carnage.