You really don't know what you're talking about.  The guns and gangs trope is a sham perpetrated by law enforcement to prop up budgets and militarize operations.
But go on, glibly repeat every BS trope you read in the papers about MJ production. 

The RCMP has claimed, since 1971 that organized crime grows MJ, even though all collected statistics refute this claim; the RCMP was nearly disbanded in the 1920s "and was partially saved when it became the primary enforcement agency responsible for enforcing the new drug laws (cannabis is made illicit in 1923 without even a debate in Parliament); "Giffen et al. observe that a review of the history of the RCMP indicates that the Force had a great deal to lose if Parliament ever decided that a serious drug problem requiring their services did not exist in Canada" (44, Killer Weed: Grow Ops, Media, and Justice, Boyd & Carter; 2014, U of T Press).