Well, it seems like it's not popular to actually say what you can witness with your eyes and near you. I've noticed the same exact thing myself, and I have been observing it for years already.
I wonder if people have noticed similar behavioral things in the past. Something like an exaggeration of Emperor's clothes, where we collectively disregard what is absolutely evident, and then we reason about what the reality should be like, and we believe that just by reasoning/talking/thinking about it, reality will somehow magically change to our liking.
That's my best attempt to not offend anyone while discussing this. Being blunt, I would simply say it's delusional behavior if you haven't noticed the same exact thing. And it's not just in rich countries, either; people in third world countries do the same thing (with phones, digital life, obsession with social media, etc.)
In my opinion, boredom and being alone is not that big of a problem, really. Everyone is alone in this world. There are very few true friendships. Most people just hang out together in the same vicinity, but they are not really friends. There's a lot of envy, hatred, jealousy, you name it. Even Blaise Pascal noticed the same thing: If everybody knew what everyone else says about them, there would be hardly any friends left.
I think only time can create friendship bonds. My friends are people that I know like 1-2 decades.
But sharing the same moral values is a prerequisite. Otherwise, it's all fake and a mask and usually it's because one of the "friends" needs something from the other.
It might be a moral decadence/degeneration problem, rather than tech-specific problem. I find it absolutely puzzling how more people aren't aware of this, since it's so simple to witness and there's ample evidence, just go out once in a while..