I don't like the rhetoric that compares one group's sacrifices to those of the other employee groups. Other than that, I like what Tim has to say. As far as the statistics cited, we all know how those can be presented to support any position; take them with a grain of salt, obviously.
Our main ammunition in this case is a letter both parties agreed to prior to BK ( in conjunction with the big giveback), which says that the company can only come to us again if it to get relief for a specified cash shortfall. By our understanding of that letter, they cannot get relief now. Additionally, they want the pension liability to disappear, but don't want that to count as a concession. (By my accounting, that is worth more than every thing else they want, combined.)
Support for a strike is very high. Many of us have started other careers, and are ready to pull the plug on this one.