I can not judge any of these person's opinions. All of them are right about what they say.
Social networks were created to ease humanity communication. From that moment on, when people implied the idea of internet communicating, the life basically changed. We need no more letters, telegrams, inks and e.t.c.
If you have mobile phone and 5G internet - you can communicate with whoever you want, wherever he/she is.
But it's also has bad sides, afterwards the interned had finally introduced in our routine - people became lazier than they were.
Internet is fully filled with anonym people, it means that you can't know the person you chat with. It's somehow and somewhere increased the crime rate.
So, I agree with all these people. I think that we need to filter our internet using, we should go into it only on good and useful purposes. If you want to aimlessly spend your time somewhere - the internet is the worst place where you can do it, you better go on a little seashore jogging. Use internet as a place where you can find a lot of interesting science information, learn something new that you'll need in your future and e.t.c