If airlines persist in treating passengers like cattle, then that is the sort of clientele they are going to attract.
I hope you are being sarcastic. Asking a passenger to verify that their carry-on luggage meets the designated size limit is not "treating passengers like cattle."
No, it’s because the riff-raff now has money to spend. There is a site dedicated to the violence in Las Vegas now due to a certain group being there is large numbers.