How do you communicate to a group of young adults why TikTok/Twitter/FB etc. are unhealthy?

In my mind, it makes sense. I see the dehumanizing practices of these platforms and it’s disgusting.

But many of these young adults I’m working with use the platforms very naturally. They’ve grown up on social media and don’t see a problem.

I’m trying to figure out how to have a healthy conversation that doesn’t make me seem like a paranoid old man who just hates technology.