I'd be interested to see any studies, from any source, that claim marijuana is as addictive as nicotine.
It's not, that is of course ridiculous. Nicotine has a strong physical addiction component to it. It's more addictive than heroine in that respect. A human body can become addicted to nicotine in under a week with regular usage. It's doubly powerful because nicotine also becomes a powerful psychological addiction as well, generally manifesting with anecdotes like 'needing a cigarette first thing in the morning, with coffee, after a meal, with alcohol' etc.
Marijuana does not have a physical addiction component. The brain and body do not become physically dependent on it and you do not manifest physical withdrawl symptoms as you do when quitting cigarettes. That said, it can develop a fairly strong mental addiction component to it with regular usage. You'd probably notice it in 'chronics' - people who use it regularly. I can attest to it myself. I smoked pot daily from about 15 up to my mid 20s, at which point I had to give it up as it was a real conflict of terms with my upcoming career. It was a challenge to give it up for a lot of reasons, and was not as simple as just stopping. When you use something like that regularly it becomes habitual and a compulsion of the mind. I also had to quit smoking cigarettes at the same time, which wasn't initially the plan, but I found I couldn't have one without the other.
This is a good move to see though, even as a non-American. It's a waste of resources chasing down people who smoke a joint or take a bong load. Really every drug should be taken off the table as something that the law deals with when it comes to the end-user. Gradually society is evolving and moving forward to this end with some countries already there and others working towards it.
It's an archaic, outdated and programmed notion that recreational drug use needs to be chased down. Resources should be directed solely to border security to keep the drugs that necessitate importation out; heroine, cocaine etc. - and dealing with the people distributing and profiteering off it. Who do constitute an element you don't want running free with all the violence and other illegal activity dealers and traffickers are involved in. In terms of an approach to the end-user, what is needed is honest and up front education on the
real risks and consequences to your health and life.
Pot on the scale of recreational drugs is probably the least harmful though, alcohol is a far more dangerous drug with real physical and mental addiction, causing the loss of control of yourself which pot does not. Also in already predisposed individuals to destructive behavior it can bring on violence, drunk driving, sexual assault, spousal/child abuse etc.
Best bet with pot is to go beyond the current state of things to legalization. Package it, regulate it and tax it. Drugs are one of these things that simply are not ever going to go away. They've been around as long as we have been. As we evolve we will learn to accept them and find more positive ways to educate people on the dangers of irresponsible drug usage and the consequences of scale with the more serious drugs.
A 'war' on drugs is nothing more than a war against your own society. Drug usage is widespread; any workplace, school or church will have people who use recreational drugs. Drugs become harmful when they become an addiction, dependence, disruption to having a functional life and/or a habit you cannot sustain without resorting to illegal means. Just like the gambling user who goes to Vegas once in while and plays the slots and tables without going bankrupt, there is the cocaine user who does a few lines once in a while and still goes to work, pays their bills and otherwise does not break any laws.