Recently, Prohibitionists attacked Prop 19 supporters in California, claiming that a Rand study showed legalizing would only cut 40% of the Mexican drug cartels profits instead of 80%.
Instead of cutting 40% of the profits of Murder Inc, Prohibitionists say, it's better to keep in place policies that might protect the 1-2% of pot smokers who have a 'bad reaction'. Or, at least, these polices might protect them if the policies worked and people didn't smoke pot. Because, basically, American 'experts' in drug policy don't care that much how many foreigners are killed by our policies.
It's not the pot smokers who are reality-challenged here.