Earlier quoted context omitted.
The war on drugs in the 80s was focused on Colombia and disrupting Pablo Escobar's coke empire. That was successful but caused production to move closer to Mexico. Everything was stable until the national army took over policing enforcement in 2006 and now you have many 1000x more murders. Some of the murders that are reported as cartel murders can be national army murders. It's a different situation that resolves it…
That tells me what happened, but not why? (I appreciate the detail, though) Why isn't Canada a major narcotics manufacturing center? Why is Colombia? I think the answer is probably complex and involves poverty (meaning switching from lawful occupation to unlawful occupation is a bigger difference than in, say, Canada) and corruption/lawlessness (which may also be consequently tied to the poverty, if corruption is a w…
If this begs the question "why is Canada more stable than Columbia, Peru, or Bolivia", apart from the fact that those are developing countries, it's worth remembering that the United States was aggressively and violently intervening in their politics into the middle of the 20th century. The same can't be said of The Maple Leaf States.