lol in Massachusetts I live in a valley area that is prime location for growing because of the conditions. They created a task force for tackling the problem.
Illicit marijuana farms on public land, are a threat to public safety. At least in california. Some of these farms are booby-trapped by the drug cartels that planted them, and are sometimes guarded by armed men who will shoot trespassers.
If someone wants to grow marijuana peacefully and legally on their own property, I have no problem with that. I don't want to be hiking on public property in Yosemite National Park, and step into a booby trap on some drug cartel's marijuan farm.