Nothing new in overbooking - hotels do the same. It was the way it was "manhandled" that is totally unacceptable treatment of a customer. My personal global travel experience spans over 5 decades and the entire experience is now TOTALLY selfserve and survival of the fittest. We have to handle our own bags, print tags and lift and wait. Upgrade to business class and it's not much better...just bigger seats and off first. Over the last 5 months of Air Canada arrogance - two trips "resked" within deadlines requiring thousands of dollars in extra nights of unused and extra nights of rooms needed, referral to call Reservations in Montreal when out of the country to rebook flights, left on hold over days in trying to do so. It was so much better when it was IATA and OAG when the airlines all had the schedules of other carriers and could interchange the tickets. DeReg and decline of civil behaviour by the public have made the chore of travel to get to the destination a "re-think" these days.