@don4331's conspriacy theory:
No one makes hard copy repair manuals anymore; pretty easy to create bots to shutdown repair videos.
Fund buys up auto parts companies; operates selling product below cost by not paying suppliers. Big investors make a tidy profit, then dump the stock. Declares bankruptcy - Sells inventory to metal recyclers as part of foreclosure. No parts left for consumers.
First Parts group situation has me concerned.
Domestic parts manufacturers are given choice - if they want to supply OEMs for new manufacture, they won't make parts for out of warranty vehicles. If you want parts, you go to the dealership.
You block foreign manufactured parts as dumping (Sorry for the political statement; its more about the cost of starting a new business while not having the volume of supplying OEM, means your unit cost is higher, than a manufacturer who has been in business/is doing volumes).
Auto wreckers are targetted by EPA - chemical spills (anti-freeze/oil) are found, massive fines ensue...Auto wreckers close doors - not profitable. We can add people hurt in yards lawsuits.
With those in place, you can't get brakes, wipers, etc, etc for your example: 1993 Ranger, 2005 Wrangler or 2011 Buick Lucerne. Within 5 years, the only thing you can do with your "off warranty" vehicle is turn it in to a crusher. And buy a new Ranger/Wrangler/etc.
Complete win for Ford/Jeep/GMC, customers are guaranteed back with 5 years (end of warranty) for a new vehicle.
Probably even better than Japan's Shaken laws.