You very clearly have no knowledge of what the research on addiction says, because this is all complete and utter bullshit.

If physical dependence was the primary issue with addiction, weaning would work. Shockingly, it doesn’t.

Cravings aren’t physical withdrawal. They’re caused by your brain expecting a different balance of neurotransmitters than it receives. Your body also adapts in other ways to drugs to prevent them from killing you as you increase your dosage, but the entire reason you increase your dosage is because the prefrontal cortex is “designed” to decrease the stimulation of the same behavior as the habit is learned, and the goal of hard drugs (again, along with other thrill seeking behavior, and gambling) is to chase that high stimulation. That loop is why you constantly need more, and it’s the habit formation of that loop that defines addiction.

This is all very basic, well understood stuff. The actual low level details are hard to pin down, but the fact that addiction is habit formation caused by neurotransmitter fuckery isn’t something that’s debated by anyone relevant.