Long overdue in fact. But then perhaps heroin wouldn’t be illegal if it was big pharma was producing it in large quantities. It just got barred early enough. Besides why we always forget how addictive and damaging is the well available alcohol?
// Sweden
How many heroin users do you know who manage to only have 1-2 hits a week socially though and hold down a career.
These are:
Alcohol (+the prescription benzo combo) Gambling Sugar
Add to these tobacco if you want. Nicotine on its won as a standalone agent is perhaps no more damaging than caffeine, but is used in a form-factor that really grills one's lungs.
for example - Russian influenced Balkan areas all take drinking of vodka as something super normal.
Heroin (diamorphine) as a molecule isn't really substantially more problematic than e.g. oxycodone or fentanyl, which are in widespread medical use. The specific ban of heroin is more a historical contingency.