Oh please, people are leaving because majors are hiring. Not because of the reasons you say, atrition will continue even if salary is increased. Look at Comair, their salary is way better than the one at PCL and they are still loosing 30 to 40 captains a month.
If you think for a second that management will sign on a substantial increase on the new contract to lower atrition you are the one living in a fantasy world. Do your time and get out, regionals are never going to be career jobs, the high atrition is welcomed news to them. The younger the pilot workforce the lower the cost.
You are missing one real important factor. Half of Pinnacle's attrition is from First Officers, not Captains. Of the 35-40 who leave each month, only half are Captains. We do not have First Officers who can upgrade to Captain. We lose about a third of FOs each year. You can significantly slow the FO attrition through pay. Pinnacle FO pay for first two years is abysmal.
Agree about Captains, but not FOs