You're not entirely wrong, but you're not entirely right.
You can use a screwdriver to stab someone, or you can use it to fix something. It isn't about the tool itself, it's about what you're doing with it.
Some people take social media and use it to connect to others, or they use it to help build something they wouldn't have otherwise. Many people take social media and use it as a weak simulation of what they're missing from their lives. It's all about what you do with the tool.