Economists would argue 'supply & demand' will correct the situation itself.
Demand is not something we can change. Thousands of desperate wannabes who would do anything to get to the front of a plane.
That leaves the supply side. At the moment it's a relatively easy decision for airlines to squeeze money from the front right seat too. Lower the selection criteria, and increase the 'entrance fee'. I get the impression that the newer aircraft are a lot easier to fly anyways.
Has anyone objectively proven that P2F is a *significant* safety risk? Subjectively we know that CRM is affected - but has it caused a problem that would call for regulators and/passengers to seriously care about this? If it was the case, the media would have been all over it.
At least there are still a significant number of airlines out there that still pay for training. Most of these are not in English speaking countries though, and pilot selection programs are tough. Just like the good old days :-)