These BA BALPA folks will have about as much success as the 49'ers did at CX...the bottom will fall out, leaving them with egg on their collective faces.
Their time has come and gone, unions (in nearly every industry today, not just airlines) have a much less collective voice than even a few years ago, and it will continue.
Folks who don't wake up to this very basic fact will be sore losers...personified.