I watched while the union put eastern airlines out of business. several good friends lost their jobs.
for instance, if it happened to be the ramp crews break time, they would walk away from the airplane and leave a bunch of passengers wondering where their bags were. they couldn't wait 30 minutes.
they also refused a pay cut to help the airline during rough times.
the non-union employees at Delta airlines, on the other hand, started "project 767" and actually bought Delta a boeing 767-200. on the rare occasions that I fly, my project 767 pin is on my lapel.
that airplane has "the spirit of Delta" painted on the nose.