got studies to back it up? (not saying youre necessarily wrong, just want to see some hard evidence)
Do you really need studies to tell you that? Alcohol has proven to be physically addictive in some people--it's called alcoholism, and you will find that it's quite prevalent.
On the contrary, there are no physically addictive substances in cannabis. And while absence of proof is not necessarily proof of absence, there have been a sufficient number of studies that this can be reasonably assumed. The addiction with marijuana is the same as with sex, or with food, or with playing Everquest--that is it's a mental addiction. People susceptible to mental addiction can get addicted to just about anything... it's their personality more than anything else that is the root.
And as far as alcohol being more likely than MJ to lead to harder drugs. It would be hard to find a study to prove that assertion. The biggest problem is that nearly everyone who has smoked MJ has ingested alcohol at least once in their lives. That is what people mean when they say that the true "gateway" drug is alcohol. For most people, that is the first "mind altering" substance they ingest (barring perscription meds like Ritalin, codein, etc.).
I'm very sorry for what your family and friends went through, but they should not blame the drugs and neither should you. They will only begin to heal (emotionally and mentally) when they accept responsibility for their actions. Physical addiction is a terrible thing, I know. But you will find that the first time they snorted/injected/smoked whatever physically-addictive drug that no one was holding a gun to their heads. Believe me, I empathize, sympathize, whatever. But avoiding responsibility isn't healthy.
Excess is everywhere---not just with drugs. Drug ABuse is just a symptom of a much greater societal problem.
l2c