You broke the code. The fact is, emotions aside, the east will make more in upgrades than any contract provide them with the nic. That's just simple mathematics. I'm not saying they are right in their actions but it's not hard to figure out why there is no effort on the east side to complete the merge.
Your assumptions are incorrect. East narrowbody captains top out at approximately 125/hr. Assuming a new contract is industry standard then we will see top of scale fo's at 125 hour. Then you have to consider that a junior east ca gets paid guarantee while as a senior fo he/she could credit much higher. Throw in substantially more vacation, higher retirement contribution, better work rules, etc and it's a no-brainer. Your logic doesn't hold up under scrutiny. It's obvious the east is running on emotion.
The east contract is so bad you would all be better off as senior FO's than junior Captains....As you said, "that's just simple mathematics."