Well the way I would see this one is the XJ pilots have two options:

1. Strike anyways (yes I am aware that it would be illegal) and worst case scenario they go lock up the union leaders for a night cause lets face it they cant arrest everybody there's just too many of them...

2. Coordinate a simultaneous resignation of every pilot on the seniority list including the furloughees and make it known that if any furloughee decides to come back he/she will be considered as having crossed a picket line and will be scab listed as such....

But bottom line I think the end of days for XJ is near...