I agree it seems that an extinction level event might be the only thing that is capable of bringing us together. We’ve had world wars, a Holocaust, Tsunami, Covid and Sept 11 and that didn’t help. So as you rightly have noted, an extinction level even might be the only thing which unites us.Not wishing for it though.
"world wars, a Holocaust, Tsunami, Covid and Sept 11"...
You may not agree but those are minuscule scale,,, small things. If we keep polluting, destroying forest, killing spiecies to extiction, manipulating DNA, etc etc. The worst it yet to come in my opinion.
What I mean by manipulating DNA is "we do" do it with bacteria, viruses, different animals, and even humans. We don't have a clue the harm that it may or will cause years down the road.
We engineer bacteria for example to do what it naturally wouldn't. We relocate a species to battle another spiecies and in the long run it becomes an invasive species causing more damage than good.
For example killer bees are of human interference in nature.
We create so many deadly thing such as gases, chemicals, poisons, etc and we do/have created deadly bacteria and viruses.
Man will never destroy life or earth but we may eventually destroy ourself.