What did cocaine addicts do before cocaine was invented? Kind of weird for the brain to be addicted to something that didn’t even exist yet.
No offense, but your posts here repeatedly sound like you haven't taken a biology class in your life.
Pretty much none of the "addicts and ex addicts" it seems like you're trying to save, are absolving themselves of responsibility.
What they are saying (and your posts are very confidently repeatedly ignoring) is that some humans have a stronger predisposition to addiction. This is not up for debate, even if it is debated whether this is a "disease" or not. Some humans have stronger responses to dopamine stimuli. To answer your question, before cocaine, these people were daredevils, obsessive with certain types of behavior, or had a lot of sex. And today they still exist, even when they never try coke or booze or opiates.
You can be addicted to playing hockey or working out, for God's sake. Earlier in your thread you said "if you ever do something one day and like it so much you want to do it the next day, you should realize it's addictive." You mean like hockey, or sex, or posting on a message board?
People who get to an unhealthy place with any substance or activity get there because of behavior and choice, but they also can get there because their brain is more prone to finding and seeking such behaviors. Not everyone receives the same dopamine or serotonin response to the exact same behavior (or substance). It is both a choice with personal responsibility, and a vulnerability the existence of which they have little control over.
To keep it on topic, I also have little sympathy for Nuke. He has more resources than 99.99% of people dealing with this issue. I have empathy, and I'm sure it sucks for him, but he did make his choices.
But if you don't like others saying "it's a disease", surely (probably not) you can understand that others and biology disagree with your stance that everyone has the same ability to choose not to be addicted to things.
Having read all these exchanges, I have little faith that this will lead to any constructive dialogue so I'll just say best of luck to you.