Even the union pilots won't support their "brothers and sisters" at Unite.
Josh, when people say you have no friggin' clue of what you're talking about, it's because its true.
Most of us have been around this for 20+ years, and a few possibly since before you were even a passing thought between your parents.
Pilots are by no means the only workgroup that can stop an airline dead in its tracks.
Sitting in my basement is a set of black binders containing the work I did on strike contingency planning in 1997. It was done because of the pilot negotiations, but was developed to fit equally for any workgroup. Some of the particulars have changed (e-ticketing was still new, kiosks hadn't been rolled out yet, and the web was still in its infancy), but the basic premises have not.
One of the lessons learned in 1993 was trying to run less than 40% of the airline was more trouble than it was worth. There was PR and psychological value, but that's about it. Running with management volunteers managed to keep a few key flights operating, but the only place that offered any value was for point to point passengers who weren't connecting on mainline.
If you want an idea of what a fleet service or mechanic strike could to, look no farther to how AA performs in a weather event when employees can't get to the airport. 40 or 80% of the ramp or flight attendants didn't show up to work, it would be like having 18" of snow except for the fact that every other airline would be operating in blue skies and clear runways.
If the mechanics didn't show up, you'd be able to run the airline for 12-18 hours before it begins to collapse. Essentially, it's just enough time to get all the airplanes out of the spokes and into the hubs where they can be parked.