As a pilot, no matter how hard you try to take care of yourself and how hard you try to get adequate rest between trips, airlines and the FAA are the ones to blame for what is currently happening.
Under this 'reasoning', the FAA might then be responsible for the alleged inability of lower paid First Officers to pay their bills, because they have a wife and a couple of children to feed.
It is not the FAA'a job to determine a pilots family life, it is up to the
pilot to actually show some responsibility for his personal life.
IE: if you want bankers hours, become a banker.
Pilots have to work a completely different and often quite demanding schedule, and their personal family life had better not come in the way...otherwise a don't come Monday letter is arranged in short order.
IE: the respective airline pays for their pilot services, not family life.
Now, as to whether that lower pay is justified, many times it is not....yet, there are plenty of new(er) applicants who think it is.
Supply and demand at work.