Biting off more than you can chew!

When you bite off more than you can chew,
You leave no resources for others to devour.
And the next time it's their turn to do the same.
And in this competition,
we have depleted more resources than we know,
And are doing it continually.
This will lead us to a time when you have nothing but your own teeth to bite,
until all your teeth are shattered in due course