What he actually said
“The pontiff has also made what appears to be an unprecedented statement that Catholics may have a moral responsibility to limit the number of their children, while reaffirming Pope Paul VI’s ban on artificial means of birth control”.
Never in the history of the Church has a pope criticized Catholics for having too many children.
“As for you, be fruitful and increase in number; multiply on the earth and increase upon it.” Genesis 9:7