Britain knows all about this. Amongst the many times unions have screwed over Britain, the most notable in the Miners Strikes in the 1980's. The country was dragged into what was essentially a civil war when the National Union of Coalminers - headed by Stalinist Arthur Scargill - tried to bring down the new Conservative government. In fairness, they were pretty used to bringing the nation to a halt, as they had been doing it all through the 1970's. It was only when they came head to head with new Prime Minister Margaret Thatcher when they realised they had a real fight on their hands.
So, public unions are a pain. Yet this has never quite got over to the public at large, and I think this is in part because people like the concept of "unions", but they simply haven't made the distinction between private sector unions, and public sector unions.
The Heritage Foundation has released a video explaining the difference, and showing just how damaging public sector unions and collective bargaining can be. I thoroughly recommend this video, and hope that you enjoy it!