I hesitate to post on this thread, things have a way of spiraling into insults and flame wars.
But would like to draw a parallel to the Pan Am / National merger; while over thirty years ago, it was similar to the US/HP merger. Pan Am had a great many pilots on furlough, the Sun King airline had been expanding and had a relatively junior pilot corps. NA had captains who were hired after Clipper Skippers on furlough. DOH was considered unfair to the NA pilots; I must confess that I don't know the details , but IIRC that ALPA came up with some sort of slotting scheme that few were completely happy with, but did go into effect without too much nastiness. Of course, there was no internet back then, just graffiti in the loos of the crew rooms. Not nearly as effective! 🙂
There is a bit discussion of the issue in Robert Gandt's Skygods (which an excellent read and finally back in print). I'll try to dig up my copy.
Surely, someone will correct me if I am wrong.