Genesis 9:1, 7, 19 And God blessed Noah and his sons, and said unto them, Be fruitful, and multiply and replenish the earth….And you, be ye fruitful, and multiply; bring forth abundantly in the earth, and multiply therein….These are the three sons of Noah: and of them was the whole earth overspread.
All the people who ever lived on earth are descended from Adam; and also all people are descended from Noah. The mandate given to Noah was the same as that given to Adam in the beginning: Genesis 1:28, ”And God blessed them. And God said to them, Be fruitful and multiply and fill the earth.” They did so. Within ten generations by Noah’s time there could well have been over a billion people on earth. Then, on an empty earth Noah was told to replenish (refill) it.
God blessed both Adam and Noah. Their response was to do as they were told. Given the sex drive that God created in each human being, that wasn’t really a difficult command to obey. People were glad to procreate, even though the curse on the woman made child-bearing difficult and painful. The genealogies recorded in chapters 5 and 10 give evidence that humans responded. They did fill and then refill the earth.
The Lord has not taken away this mandate and His blessing. However, the present day abortion culture is a direct disobedient response to the command and a rebellious response to the blessing. The Tower of Babel incident was a defiant resistance to God’s blessing to overspread the earth. The Lord frustrated man’s plans and overspread the earth anyway.
God loves people and wants lots of them in His Kingdom; in the person of His Son He brought heaven to earth, and He will restore Paradise at the end of time; and we will rule with Christ over the new heaven and earth.