The way this topic is being viewed is missing the danger lurking outside our borders. That danger is foreign pilots. They have already started coming in the way of Australians with the E-3 Visa. Next up will be everyone else with the H1-B. You see the advertisements for the lower end places already; Breeze, National, Northern Pacific, etc.
I have worked as that foreign pilot for a large part of my career and can say unequivacally, that you do not want pilots coming from overseas taking any jobs in the USA. We could never get traction for better terms and conditions at Emirates because there was always a company or country going through a bankruptcy that shed enough pilots to keep Emirates classess full.
Imagine the flood gates if/when the H1-B gets approved for pilots (it is being worked on as I type this). You will never get a contract improvement again when that happens. There are literally tens of thousands of pilots who would come here and work for half of what you work for.
Age 67 is the lesser of two evils. Keep the supply higher domestically so that you can control the market better and keep the low bidders outside of our territory.
Sadly, I don't think ALPA or many on here will really understand the danger until it is too late.