Dude what is this garbage you are posting?
Let me give you a lesson on the simple economics of marijuana.
Firstly, the only reason the price of bud is so high is because it is illegal. Do you really think it costs $20 to produce 1 GRAM of cannabis? No of course it doesn't. The cost of growing a weed plant to maturity is almost nothing (outdoor grow).
For arguments sake, let's say it's $100 to raise a plant to maturity (fertilizer, pot plant, few other overheads/materials). A full grown plant can produce anywhere from 6-20+ ounces. At a price (my country at least) of $300 per ounce, that's anywhere from $1800 to $6000 (minus trivial expenses) banked per plant.
Do you think that's a fair reward for the effort to grow buds? Can you think of any other crops that attract so much profit?
Answer is no. The only reason the price of weed is so high is it's illegality. 90% of the price of weed is compensating the distributors/growers/dealers for the risk they take of being busted and going to prison. If the price was any lower they wouldn't supply it, as the monetary reward would be far outweighed by the risk of being caught.
Now, if you legalize it, any Tom Dick or Harry can go into his garage and grow it without the fear of being busted and not seeing his family for 4 years. So all of a sudden, there's this HUGE gain to be made selling weed. You don't have to do fuck all really and can make $6000+ per plant. So what happens? The market gets flooded with weed and the price consequently comes down to what it should be in a free market - probably around $40 an ounce.
You can guarantee the cartel's aren't going to bother with it at $40 an ounce. They might as well be growing corn and do you see them doing that now?
Also, street dealers will disappear almost over night.
And all your points are flawed.
1) Yes, if growing weed is profitable for the govt
2) Yes, if growing weed is profitable for the govt
3) Yes, if growing weed is profitable for the govt
4) Yes, if growing weed is profitable for the govt
5) Yes, if growing weed is profitable for the govt
6) Yes. Yes. Yes.
Read a fucking book for once.