The human race as always been motivated by self interest. It's nothing new. I think it's social media that has it beamed into one's space at a concentrated rate. It gets depressing and overwhelms.
I see sentiments expressed on social media that would've made my parents gasp in horror.
When one is on top of one's game, one can deal with children, work, elderly parents, money worries etc. But when problems arise, like ill health, or a rocky relationship it tips the balance. It's hard to keep seeing sunshine when the world looks like a hotbed of misery. I don't think it's changed, we just see it more.
My friend's 13-year-old daughter, has suddenly become depressed and when pushed she told her mother she was upset because there was so much stuff to fix in the world.
No-one has that big a toolkit. All you can do is your best, help where you can and when it becomes too much, be kind to yourself.
to exit and all those suffering.