It's probably misunderstood but people who can't remove addiction from their lives do not mean they DON'T want to. There's a variety of factors involved when it comes to resolving addiction, and it isn't something that most people would really understand. The world isn't so fantasy-like and such that you'd expect to be able to fix something just because you want to. The examples we mostly see of people being fixed from their addiction are the cases of success but the thing is, it isn't the only case out there. There are cases of failure out there that have tried, but couldn't really push through and their "want" is not the only factor at play here, but maybe others as well such as financial issues, proper access to help, environment etc.
You are right and I quite agree with you. I still stand by my earlier statement that addiction isn’t some easy feat to overcome and overcome alone. Some addicts would need serious help from other in order to get better. In that scenario, self discipline can only take you so far.
I think someone who has come to terms with an addiction problem wouldn’t like to remain an addict and would like to get better.