Your best flying jobs in this country are not FedEx,UPS, or any of the legacies. They are the elite corporations that have their own flight departments. My job is not only a pilot, but I have to entertain customers on hunting and fishings trips and yes, I have to load bags. However, it pays more than any of the above and more importantly, it is a MUCH better lifestyle. I flew for one commuter and one legacy for 9 yrs. and would only return as a last resort.
The point here is that I don't believe the majority of the strong union personality types would ever get a position like this and therefore rely on aggregation for thier security. They receive solace in numbers. Look at the guys you work with that are not strong union promoters and you will find a more polished and confident person. This is what I've experienced in my career and I was once ALPA.