英语作文:China's one child policy

In the past thirty years of China,there existed a controversial policy which many countries in the world considered it aginst human right.This is China's one child policy.
From the middle of last century,more and more people awared that the lasting high birthrate would make the world get into trouble.In that time ,China had the most number of population ,so this disinterested socialism country took the charge of the whole world.
But even like this , many west country also criticized this policy violating the human right.That is unfair.China made the contribution for the world ,but exchanged the criticism.
Now this great policy have being excuted over thirty years .During these years , there were 100 million population decreased at least in China .How do you image China or the world would like if 100 million more people standed on the earth with you .
So,this policy would last ,and the world would be better.