Yes, I believe that. Our national union has stood by and allowed the prolilferation of the regional airline industry to decimate scope clauses of major airlines and that has what has led to the "sweatshop" level of working conditions in the airline piloting profession.
Now I don't know much, but what I do know is that it was Major MECs who first started this whole "Scope" garbage.
If Major pilots want to blame regionals for moving in and taking flying, and doing it as contract work - you only have a short distance to look. The Major's respectable MEC's / National who initiated this whole "scope" business, hence allowing contract lift to come in and fly less than 76 (insert number for your local company) seat flying.
The regional's didn't generate that language, the Majors did.
Major Company XYZ: Well Pilots of XYZ, will you fly 50 seaters around?
Pilots of XYZ: No, but any aircraft larger than 50 seats must be flown by OUR pilots. Anything less, we do not want to fly.
Major Company XYZ: Well pilots of regional ABC, we'd like to offer you the chance to fly with our company, since our pilots say it's okay for you to fly it.
Regional Company ABC: Oh hell yeah...we'll fly it.
I'm pretty sure that's how it played out years ago.