Regional airlines can't give pilots the needed raises. That money doesn't exist, it comes from their major airline partners and the contracts that are negotiated with them. Regional airlines do not set ticket prices.

Regional airline management can ask for a bigger pot of money from their parent partner, but if the pot gets too big, the money will get awarded to someone else's airline who will do it cheaper. If there is no other airline willing to accept the pot of money from the parent airline, then the flying goes away and gets reabsorbed back to the major where it should be anyway.

Regional Airlines are nothing more than a B scale. Wanted by the major airline. Wanted by the major airline pilots. Wanted by regional airline ownership. Perpetuated by regional airline pilots. The less you make, the more everyone else makes. But isn't this the way you really like it? It must be because nobody in 20 years has done anything about it.