Religion

But the problem, for me anyway, is that social media interactions are not the same as actual relationships. It is far too easy to attack people, and to insult in the limited and "bloodless" arena of the internet.

One phrase that is frequently misused is "existential crisis", but as you note, climate change is an existential crisis, as is the threat of nuclear conflict.

But in my view, these type of interactions are useful and to be encouraged.