And when quite a few regionals are going out of business altogether.

Regional flying is the issue. Any individual regional is expendable, most existing just as a means of whipsawing the others for reduced rates. The major pilots hate them, the major managements play them. If the company you are working for isn’t selling the tickets you are taking you are a temp worker. It’s as simple as that. As a junior guy at a major your job will at least eventually survive hard times if your company doesn’t go bankrupt, and probably even if it does, albeit at potentially reduced pay. Regional guys have no such assurances.