DGP the medicinal purposes of Marijuana are a huge part of this discussion. If you don't want to bring it up, fine, but don't minimize it's CORE involvement in this discussion. Decision is all about risk vs reward, in the end. And that's your debate position: that the risk of Marijuana's legalization isn't worth the reward. If the risk can be evidenced to outweigh the reward than you are correct in your position, hence the debate.
Then there is this book you refer to, which I cannot understand, of where you staunchly disagree with it's author by the second chapter. So, this author believes that if Marijuana was legal that drug cartels would start exporting it like hell and getting rich. You mean they would start to do REAL business? Have to set honest prices that somone would pay? Because that's what they would hit when the passed the border into the legal US weed market.
First off they are already rich and are growing in their perspective countries with weed the way it is now. It's THOSE countries governments that need to twist the cartels arms and it doesn't appear that that is happening. Forcing REAL commerce is a solution causer MORE than a problem causer. No drugs should be illegal they should be CONTROLLED. Government leaders need to put their thinking caps on and stop sleeping with the enemy.
Your argument, dgp, is a red herring fallacy. The negative "effects" of the legalization of marijuana in third world drug countries cannot rightly be considered of merrit to the United States of America. If my neighbor who abuses his wife and kids came to me and said that there is even one scanario where I am responsible to change my life because of the repercussions of his ghastly actions I would put a ring mark on his forehead.
Those countries have POLITICAL issues and until those issues are resolved internally their citizens will continue to be stripped of their most basic human rights. There are many organizations that have erected themselves in opposition to the real effects of such tyranny and corruption. You have to take on the problem at the HIVE, not kill single bees pollinating flowers. Maybe the legalization of weed will not lower your crime, but surely it will be a step in the right direction.
-Sab