I've been to Vancouver, too, and I've seen the street you're talking about. Drove down it with my family and it was shocking. Massive piles of trash everywhere, grocery carts, garbage bag "luggage", mobs of people. It was sad and quite shocking if you've never seen it before. Nothing I've seen in SF or LA compares to this.
But...I don't think marijuana caused that. I think it has a lot more to do with a permissive city than pot. Recreational pot is legal in my city (Tacoma, WA) and we don't have this issue. In fact, we have almost no problems with pot at all. My only complaint about the entire thing is the tacky advertising and storefronts that the pot industry uses to attract clients. The market is oversaturated and shop owners are desperate to survive and are resorting to decorating normally seen at used car lots and Liberty Tax outlets.
But...I don't think marijuana caused that. I think it has a lot more to do with a permissive city than pot. Recreational pot is legal in my city (Tacoma, WA) and we don't have this issue. In fact, we have almost no problems with pot at all. My only complaint about the entire thing is the tacky advertising and storefronts that the pot industry uses to attract clients. The market is oversaturated and shop owners are desperate to survive and are resorting to decorating normally seen at used car lots and Liberty Tax outlets.