What's the alternative to canceling flights? Nobody can staff more planes...

Bring this flying back in-house at the major level. Fly some of the routes on larger equipment. Delta is doing that already.

Eventually staffing issues will hit majors too, but not for a while. Additionally, there will likely be a loss of service to some communities and a loss of frequency on some routes.

The high quality majors aren't having a hard time filling seats in new-hire classes.

https://disciplesofflight.com/pilot-shortage-where-did-pilots-go/

https://flightaware.com/live/cancelled

I watched a standup/high speed get cancelled last night for lack of crew, which they blamed on weather so they didn't have to buy hotel rooms. So you'll never know the accurate numbers of actual crew cancellations

That guy who tells his story of vacation and being on RSV is an idiot. Really you picked up the phone when you weren't working? First strike. Yet you fly back to work on vacation to accept a junior man? Second strike.
Aren't you part of a union? They can't just fire you.
Oh brother this guy tries to hard.

Fixed it for you. Maybe you didn't get it when she kept using her name Erika, or the picture of her at the end of the article...