Agree that a national list will not happen for many reasons. Mainly would be a US Airways type blood bath x1000.
But, (if you're a Comair FO as your profile states)you obviously feel this way because you would lose a lot of seniority. Anyone hired into a regional the last few years would be against it. Most pilots hired in the 2000's have no idea how historically difficult it has been to get an airline job and have never experienced it! Walking out of flight school and into a regional jet has NEVER happened except for the past few years. It's understandable you'd want to preserve your seniority.
On the other hand, what about the thousands of us who started flying in the early 1990's. Don't tell me it's all timing, I started flying in college at 19 and never had the same opportunities like pilots today. If we want to be pilots, we unfortunately can't predict the up or down cycle when we finish our initial training and become employable.
Most of the pilots that started flying in the 90's had to flight instruct for a few thousand hours before finally landing a 19 seat turboprop job.
Me personally...flight instructed, 135 night freight, Air National Guard, 2 (non ALPA) regionals, survived a furlough after 9/11, survived several down cycles in the industry (including PFTer's who hurt the industry) all while trying to eventually land that major job. NWA is my 1st ALPA carrier. Do you think some pilot who landed a job at 250 hours last year should be senior to me because he was in ALPA first? That's the suggestion in this tread. There are many thousands who have a similar career path as mine. Can you see why I disagree with your assessment?
There are too many issues to overcome to make this list reality. Like I said earlier, in theory it's a good idea.
Just my ramblings on why it will never work.