I'm sorry, it may be too difficult for you to comprehend, but the cause of suffering is easy to understand. We are alone in the universe, and the universe is one mean ****. Short-sightedness has nothing to do with earthquakes, tsunamis, evolving viruses and bacterias killing people.
I find your post to be incredible naive to the difficult plight that people in poor countries face. Some people don't have enough money to put food on the table, never mind contraceptives.