I agree with you. If there's no willingness, then there's nothing that can be done. It's a need that the person itself to work with his
addiction and the rest will be a follow-up in helping him to solve his problem.
Being responsible means that you are in control, though even sometimes you can exceed, but you won't allow anything to go that far.
Only you who can work with everything, and only your willingness to move forward, will help you in terms of quitting
or stopping whatever the problem that may arise.
Before someone can do anything the will to do so must exist, and if a gambler does not want to stop gambling then nothing which is said to them is going to work and their loved ones will have no other option but to watch that person to self-destruct, it can be without a doubt a very difficult period for the families of the addicted as they can literally do nothing until that person realizes the mistakes they are making, and while some of them eventually realize their mistake, there are many others that never do so.