Unilaterally taking heroin away from individuals (especially without investing in the necessary support structures) is also a wrong and doomed strategy (I think everyone here is familiar with the abject disaster that was the War on Drugs), so that's not very encouraging.

Government does have a place here, but it's in the form of banning hyperoptimizing attention/advertising algorithms and other business models that rely on precision crafted human manipulation, not micromanaging as a parental stand-in.