Tightslot has it spot on:
...the real source of the problem is British social culture.
Our culture is one which appears to tollerate drunken oafs and fails to take action when their actions offend others. So when these people fly with my company they are genuinely surprised when they are told they are told to shut up, offloaded, barred from travelling, arrested, imprisoned etc. On orange flights it forces the likes of easyflier83 to really work hard to keep her flight under control. She shouldn't have to do it. Where I am we only ask that people do as they are told and allow their fellow passengers to enjoy their flight. As has been mentioned above, it's only a tiny minority who make other people's lives a misery - but their effect on some flights is totally disproportionate to the numbers involved.