

Alcohol has a negative effect. Historically it has not gone well when countries have tried to ban alcohol.
Adults can make their own decisions. They can consume things that are bad for themselves. They can smoke, they can drink, they can gamble. Kids, including teens, do not have brain developed enough to comprehend the consequences for their decisions. They might understand the words you’re saying if you try to explain the consequences, but they wouldn’t fully grasp the magnitude.
Not to mention there is 100% more damage done to a developing brain. It changes the way their brains function that does not happen when someone starts using social media only as an adult. The same goes for drinking, gambling, and smoking is just bad for everyone.
In adulthood, social media use is also linked to activation in the brain’s reward centers, but two key differences may lessen harm, Prinstein said. First, adults tend to have a fixed sense of self that relies less on feedback from peers. Second, adults have a more mature prefrontal cortex, an area that can help regulate emotional responses to social rewards.
https://www.apa.org/news/apa/2022/social-media-children-teens
ban algorithmic social media in its entirety
You want the government to define an algorithm? Sorting by newest first is an algorithm… It would just be a ban on social media, which I can guarantee nearly everyone on this site would call absurd as well.
If anything, it would be an example of false equivalence. I don’t think it is, to be clear. But definitely not a “classic” example of strawman.