Sadly we can't see that our want for fancy toys now will make food, clean water and shelter (a place to live not affected by heat, drought, flooding, forest fires, snowmageddon, etc) scarcer in the future.
It is a bit of a philosophical question: If the problem is our need for new toys, and stone-age style "bare necessities" living would perpetuate mankind indefinitely (or at least not cause extinction based on actions caused by mankind), would you want to live that kind of lifestyle and doom all future generations to that?
