What Pope Francis points to so graphically here, it seems to me is the paradox that is our "social sin". In practice, each of us in his/ her personal life perceives interests of one's own well-being as being challenged by common well-being. And so it is.
It is difficult to balance self-interest and other-interest; and yet, that precisely is the Christian mandate, the 'golden-rule' mandate. Collective individuality, self against other (ecological nature), is in practice the 'social sin' that continually conflicts consciousness and the sustainability of nature - what we might call the 'Original Sin".
Eucharist is about enlarging the gratuity potentials of nature, not depleting them by mindless exploitation. We must ask ourselves, 'are we fated to self-destruction', or,  do we have the grace and intelligence to put other-interest on a priority basis to self-interest? Isn't that the lesson of Jesus' Life and teaching?
"...serious about building a solid and fruitful relationship of love..."