I think this is a good metaphor for how humanity has "dealt" with problems like climate change.

If you make a tough decision, it causes hardship now, but prevents hardship in the future. If you don't make a tough decision now, someone in the future has to either kill a lot of people, or just pass the buck to the next guy. People justify not making the tough decisions by saying that maybe eventually down the line someone will have an easy decision and there will be nobody on the side path, even though all observable evidence says that the number of people on that path just keeps growing exponentially.