How I ruin peoples hopes

Me: Do you hope the cure to wold hunger and All stickiness found also cured? And the water crisis?

Person: Of course!

Me: Well if that happens then babies would be produced at a more rapid rate and the population of the earth would grow rapidly. The earth can only estematedly hold 10 billion people and with all of biths there would be to many people. Many animals like Dogs would be killed in order to feed so many people. You would have to sacrifice your pet and there would be a more need for water meaning the water problem was never solved. Eventually many animals would go extinct and mother nature would be so abused she cant hold anymore meaning we would all die slowly.

Person:.................

Me: Yea