We are all going to DIE

Scientists estimate that 150-200 species of plant, insect, bird and mammal become extinct every 24 hours.

Extinct. There is never going to another like it again. Ever.
Now Nature takes care of her own and when she decides it is time for a species to move on that's ok. They had their time and now it is time for another to take its place.
When man steps in and just through a pure sense of greed, want desire we are killing them off.
The great Auk was killed because they made great pillow fluff
The passenger pigeon were killed simply because there were a lot of them. A flock could take an hour to pass over and in one 3 month period hunters killed 50,000 of them a day.
The Carolina parakeet was easy to kill because as a species they would stop to mourn their dead.
Leave it to clay-footed man to interrupt the natural order of life.

Sure, a human plague would be nice to thin the herd but that wouldn't be a teaching event. If anything, it would sway us the other direction and make us feel more self-important as a species.
No,
We need an alien invasion.
Like Independence Day meets Predator
We need to find out we are not the top of the food chain anymore and that all life is important.
We need a humbling event to put straight in our heads what is important.

Instead, what we are doing is turning our home into a barren wasteland.
When my grandchildren are my age they are going to pay and pay dearly for what we have done.