The US stance is simply wrong. Censored body parts on magazine covers? The taliban would be proud. Sex is actually legal in a particular amsterdam park. Nudity is allowed in german advertising. As stated, drug related violence in portugal is down since ending prohibition. Legal rights for gay and lesbian relationships is quite standard through much of europe, and the sky is not falling down here yet.
It would be a fallacy to hold up american society as a model of moral or logical superiority. The american divorce rate is over 50 percent, it has one ofhte highest incarceration rates in the world, yet some get hung up on whether their neighbor lets loose in his own privacy.
It is a fallacy to declare that users take drugs to escape or whatever position lets otehrs feel better about themselves. I get high cuz i like to, but i also stay sober because getting high doesnt make many of the things i need ot do any more fun or productive. The balance is up to any user to decide, just like eating or watching television.