Beef,
I, like you I'm sure, have been flying commercially for over 4 decades now and have been a pilot for over 25 of those 40+ years.
Also, I, like you, read the "rules", but I must have missed something.
Couldn't find the "We have four employees that need to go to Louisville and this plane isn't leaving until four people give up their seats" rule!
https://www.washingtonpost.com/news/dr-gridlock/wp/2017/04/10/a-man-wouldnt-leave-an-overbooked-united-flight-so-he-was-dragged-off-battered-and-limp/?utm_term=.e8dd54e25880
I also missed the "You called me out on my bluff/intimidation/arrogance/incompetence so I'll get the cops to throw you off the plane' rules.
The arrogant UAL supervisor, though possibly thinking he has the "right" to "deem" things as he sees fit can't simply call a cantaloupe a watermelon and it pass any kind of scrutiny.
In the end the flight WAS NOT Overbooked. It was just fine until the ual folks decided to remove Paid in full ticketed customers from their "already occupied" seats.
Call it what you want brutha, but I ain't buyin it.
Arbitrary enforcement of rules/regs is one thing. Arbitrarily maken em up on the fly is another.
Finally, is your whole argument that the doctor "Inconvenienced" the other passengers!?!?!?
Really?