My uncle is a bus driver and unionized. Most of those guys are reliable, hard working people. There are, however, a small percentage of dimwits who do abhorrent things and are still able to keep their jobs because the union fights for them. For example: Some driver was caught on the in-bus surveillance camera sh*tting on the bus. I will repeat that......sh*tting on the bus. Actually squatting and taking a sh*t in the aisle. He was in the union, and the union went to bat for the guy. So what happens is, from that point on, the management will now stereotype every union member as a guy who is capable of sh*tting on the bus.
If there was not a union, that guy would be fired without question, and THAT's the way it should be.