I think it depends on how you define a lot of stuff, and what you think the effects are.

If you think there are mental health effects, then it's really no different than outlawing anything with negative effects. "I don't know why we outlaw fentanyl. Nobody is being forced to use it. Don't use it personally if you don't like it."

If someone believes that these type of apps pose a real danger to people and society, it's a take that makes sense.