It is not "like a drug", it is a drug just like any other substances commonly called drugs. We just integrated it into our culture, and learned to live with it and accept the consequences of its use (on the societal level, personally it is still as capable of destroying lives as any other drug if abused). But it doesn't change neither chemistry nor biology nor physiology of what is happening.
So if someone talks to you about dangers of such things as marijuana while sipping wine or beer - you're talking to either dangerously ignorant or dangerously dull person.
So if someone talks to you about dangers of such things as marijuana while sipping wine or beer - you're talking to either dangerously ignorant or dangerously dull person.