Who do we run this industry for ?
In twenty years or so of flying passengers I have only had at tops two about two cases a year when a drunk passenger has been a problem and only one or two in that time have required any more than the drink being taken away.
Statistically the problem is not big enough to worry about until the day you are sitting next to the drunk idiot, then it becomes very personal.
I don't see any reason to change any of the rules and practices in the industry, we just need to enforce the rules that we have, the problem is that the quickest way for security staff to offload a problem is to load them onto the aircraft and shut the doors then it's not their problem unless they have over 100 mg of yogurt.
A long time ago my dad told me it was unwise to argue with idiots and drunks, unfortunately I have now had to add security screeners to that list.