I have never had a craving for alcohol, but here is an analogy:
If I get a mosquito bite, it itches a lot and I am compelled to scratch. But I am able to apply my will power and "just stop scratching."
Once I got a bad case of poison ivy. This was a different kind of itch. I could not "just stop scratching." I scratched my legs bloody because it gave immediate relief that might last just a few seconds.
Some people can just stop drinking, but for other people, it is a different kind of itch.
For another analogy, you are physically able to hold your breath until you pass out. But the compulsion to breath is so strong, that few people can apply their will and hold their breath that long. If someone has that strong of a compulsion to drink, they cannot "just stop drinking."
Most drunks would say that the first drink is what starts the poison ivy ... or that in fact the first dink not only starts the poison ivy, but is also the first scratching of the poison ivy ... and hence the cycle.
It sounds like maybe what you're saying is "this person already wants to kick it out totally, the problem is actually kicking it out' rather than 'this person is looking for a way to keep it in his life, but controlled' ... If that's the case, that's my mistake in reading your original post ... I learned about it from a person who was not using it to quit, but to control it ... so I assumed that without even reflecting on it.
But even still ... I'm not sure exactly where you're coming at it from.
"just stop drinking' can mean 'once you've had one, only have, say, 3', in which case, your poison ivy analogy applies to 'once you've had the first' ... or, 'just stop drinking' can mean 'quit entirely' ... in which case your not talking about individual binges, but drinking in general.
I might (or might not) have insight that could help ... but I still don't know ... are you (or this person) currently. already, trying to quit for good, and failing at that? (no shame in that, I failed over and over and ... until I didn't, and then the poison ivy went away.)
So, do we have a case of already warning to stop entirely ... and the 'stopping' problem?