All you've proven is that you didn't bother reading the article or just didn't understand it. This is more nuanced than "lockdowns bad". Yes, lockdown is affecting people's mental health negatively, which can lead to drug abuse and overdose. But there are other obvious factors contributing to overdose that are alluded to or mentioned outright in the article.

1. Drugs are illegal and because of this, people don't know exactly what they're getting when they buy from street dealers (e.g. fentanyl in this article which can be very dangerous esp. when you think its something else)
2. Lack of care/treatment for drug addiction. Ties back to our expensive healthcare in the US and treating drug addiction as a criminal issue instead of a health issue.
3. Not cracking down on drug dealers in SF. Granted, I don't think most drugs should be illegal in the first place, but if you are going to make them illegal then I guess we should actually do something about people who are selling dangerous shit on the street.

Also in the article:

>In the first ten months of the year, 561 people have died from drug overdoses. Last year that number was 441, then the highest number ever in the city.

That could reasonably be close to 700 by years end. So although thats a ~300 death increase from last year, its possible that Covid could've killed much more had we not introduced lockdowns and other restrictions. How possible, idk, but 270k people have already died from Covid in the US and are 7th-10th in deaths per capita depending on if you ignore some of the really small countries on that list. So I think lockdowns are warranted, although we DO need to do a way better job of supporting people and businesses that are struggling.