When I was younger I wasn’t sad because I was online, I was online because I was sad and felt out of place in reality.
The cough isn’t the cause of the cold, it’s a symptom.
Also, I gained more empathy the older I got. So you probably need a bigger data set than your own experiences.
I think it’s less the network’s fault, and more on where someone chooses to spend their time on the network. If you’re on Facebook, it is in their interest to piss you off so you stay and fight. But plenty of other tools exist to connect folks online without being manipulative.
It’s like fire, nuclear energy, or most any other tool. Use it right and everyone benefits, use it wrong and people get hurt.