I'll give you two reasons: fear and selfishness

Fear is understandable... it's like going into battle for the first time. You have a lot to lose, you have people who depend on you, you have a life. Fear is a natural reaction, and shouldn't be admonished. Standing in unity should mean we help assuage their fears with reassurance. I don't look down on the guy/gal who is a little afraid of what the future holds.

Selfishness is another story. That's the cat who has an adjenda. The one who sees this as a stopover to something better. The one who is not worried about the better good for all pilots. This guy looks at his fellow pilots and see them as suckers and saps who haven't figured out how to make the system work for them. Unity is the selfish pilots biggest fear, because it may mean an end to sweetheart deals with the company, and flying below the radar on things that weaken the pilot group.

I'm not a hard core union lover. I have my own personal opinions on a lot of issues.. but 500 personal opinions will not move this pilot group forward if we can't resolve to stand up and demand to be taken seriously. This company has been like a bully on schoolyard playground.. and we've been content to just surrender our milk money everyday for two years.