I don't think we'll ever reach freedom. I think that it's a thing we sometimes get closer to, and sometimes we move further away from. Some people believe that freedom is an individual matter. And they may have a lived context that allows them to believe that they are free. But something always happens that makes it clear that we are never completely free; we have moments of freedom. Freedom is a desire. Achieving it requires us to move towards it.
To be sure, addicts typically suffer impaired control. But substance misuse doesn't involve tropisms and reflexes. The addict believes, and believes correctly, that there are ways, often requiring help and support, to regain and leverage the power of self-control, and to act and be different in the future than they are now.