Too important? Those are your words, not mine.
Not sure where you are coming from. I don't remember advocating for a strike that there would ever be a need to replace those who picketed.
In fact, if you have been reading any of my posts - it would become more clear to you that I prefer in-house overhaul, but the consensus in the breakroom is we are done accepting less pay and benefits for future headcount.
So, your hypothetical strike scenario is a non starter anyway.
AAR? Anybody working there, is there for a reason. There will always be a few exceptions but; for the most part, this AAR talent is lacking an A&P license, can't pass a drug screen, can't pass a background check, or not enough experience for minimum requirement at a major.
Eagle? God bless them, if they wanted to, they would have already been here.
Spirit? Got a few of them already, only about 50 left.
School recruits? Lol,
Oh, and I do know what's out there. I get emails listing job openings for AMTs all over. They can not find people.