Modern psuedo science doesn't change the fact that to be addicted to a substance you must first choose to consume the substance.
I have a genetic pre-disposition to be addicted to alcohol.
I choose not to drink or take addictive substances because I know, it might not end good for me.
Its the same with any person.
As human beings we have agency, we choose actions we want to take.
You want to make addicts seem as if they are not people and can only ever be addicts because of a flawed incorrect pre-destination fallacy about genetic disposition, ignoring that every individual has a very real choice in all actions they take.
Every addict has a choice, if you are around them enough, former addicts and current ones, you realize the choice they make with every refusal or indulgence.
Poverty doesn't make addicts either, most poor in this country are not addicts, and studies show higher income people have a larger addiction rate to drugs than your lower income people.
All that to say, stop livign in a fantasy world where people have no power or control over their own actions.
If you want to live reckless, own up that you simply want to live reckless, stop blaming "genetics", income, "society" and etc for your own personal failures.