Unions did the very same thing in WWII. The Douglas plant building B-24s tried to go on strike. Their efforts ended pretty quickly. It happened in other places.
Evil and grabby greedy people always try to take advantage of a bad time.
Anxious to see how bad 3M gets hammered if at all for letting masks go out of the US.
Apparently they’ve gone full SJW in management, like P&G. So hopefully hard.