Sister, the One Child policy implemented in India and China has caused multiple humanitarian problems. Billions of dollars from the U.S. support the millions of abortions that happen in these countries, astaghfirallah. It is often the girls who are aborted and the boys kept. This has created a major shift of gender populations, it has pushed men to homosexuality; this form of sexuality has also become prevalent in the armies. Parents are forced to receive permission to have a child of their own, if they have more than one or two kids, it cause deeper problems and mental chaos for the family. They are pressured by the government and the doctors to have abortions, if they choose to keep the "unwanted" child they will be forced to pay heavy fines, etc.
The population of the world has always been increasing and mulitiplying since the day of Adam. Poverty, disease, etc. has always existed and will always exist no matter the number of human being on this planet Earth. God has never made a strict world of how many people are allowed to live and who should die. This is not in our hands. Let people die naturally from the causes around them.