It's also worth pointing out workers are much more respected as well. There's a book written by a union guy at VW (I think). The basic premise of the book is how easy his job was as VW looked after their staff very well.
It's not so much the actual flying that the issue, more the air traffic controller interactions with unexpected things like final clearance (this is still manual and visual as far as I know), military corridors and military traffic. Never say never but this is a long long way from being fully...
You don't have to be. We all benefit indirectly from unions. Take the transport union, they ensure their drivers' mental and physical health is looked and all H&S in the work environment is in place and adhered to. As a passenger I ride with confidence and comfort because of this. Same with planes.
Maybe. But being in a union is not always just about you, which is all your posts seem to be about. Thankfully others see the benefit of membership, and standing together, and the simple fact the company knows there's a union in place probably keeps a number of potential issues in check. I will...
There are a number of unions which seem, from the outside at least, to look after their members very admirably and professionally: National Union of Teachers, British Airline Pilots Association and National Union of Rail, Maritime and Transport Workers spring to mind.
Employees are getting shafted left-right-and-centre with low pay, zero hours and other stuff. Employment seems very one-sided these days. The need for unions has never been higher IMHO.