You guys are so busy trying to sh*t on 700 that you're missing the bigger picture.
The questions you should be asking are:
Why is this "alliance" even on the table?
Why wouldn't the IAM & TWU have the confidence to push for a victory on their own?
If it's a labor (or case) law issue, why are the laws so stacked against us?
If it's a sh*tty leadership issue, why haven't the rank and file pushed to make the necessary changes?
Why are craft unions appealing in today's environment, and what does that say about the state of organized labor?
Like it or not, unless one of you is independently wealthy and just turning wrenches for fun, we're all in this together.
Are pushing for improved working conditions for America's working class? A restoration of respect for the AMT profession? A better tomorrow for all of us? Yes?
Then guess what; you & 700 (and me) are all pushing to achieve the same ultimate aim, just from different angles.
... And unless you dig the idea of bosses pointing and laughing while we're at each other's throats, we need to get on the same page ASAP.