Assuming they were making mention of Swedens recommendations only approach, it’s still not a good argument because there are plenty of countries that tried similar methods and failed miserably (e.g. Brazil).
There are a lot of confounding factors not controlled for or properly studied.
Edit: I want to add something here. Had they replied to my sarcasm with a more cogent reply, I would thank them for it and reply accordingly. I may have a bit of a temper and impulsivity at times, leading to snark. But if you look at most of my comments I'm here to share interesting ideas and conversations with people, and I try my best to discuss in good faith and to be humble when I make mistakes. But at some point arguing like that with someone who is never gonna reciprocate is just being a doormat, and a waste of time.
Although, we can probably also agree it would have been best to ignore that "Sweden" comment entirely since such comments tend to be downvoted swiftly.
Now, you may be wondering: do I reliably follow my own advice and avoid responding to trollish replies like that? No. No I do not.