I never suggested they were unambiguously bad, I meant to propose that it is a valid concern to talk about.

In addition, with your argument, should you not legalize all drugs in the quest for maximising profits to a select few shareholders?

AFAIK, the workings of addiction is not fully known, I.e. it’s not only those with dopaminergetic dispositions that get ”caught”. Upbringing, socioeconomic factors and mental health are also variables. Reducing it down to genes I fear is reductionist.