Generally speaking, it is not fair to punish everyone for the misbehaviour of a few. While air rage continues to make the headlines it is fair to say that it is a very small proportion of travellers that commit air rage.
I hear some ask " Why should we put up with a few air rage pax while we won't put up with a few smokers?" To me the answer is obvious -- you CAN drink without upsetting other pax, you CANNOT smoke without upsetting other pax. Not to mention that fire in the air is the worst fear of most of us.
So my view is that the new hard line on air rage should be given time to bite -- if enough perpetrators are locked up in some God forsaken hole for a few weeks and then have to find a way home and then discover that they are banned from all airlines, it might just adjust a few attitudes!