Making the world a better place can be a joyful enterprize, that is, if we do it God's way as God instructed in Genesis 1:28.
God blessed them, and God said to them, “Be fruitful, multiply, fill the earth, and subdue it. Rule the fish of the sea, the birds of the sky, and every creature that crawls on the earth.” (CSB)
Part 1: Be fruitful - Join together, male and female, in marraige and out of love bring new life into your home.
Part 2: Subdue - Align your life, your family and your society with God's created design.
At the family level, train your children in the ways of the Lord, so they will know the way to live by truth and have abundant life. (Duet. 6:4-7, Prov. 22:6)
The Christian, who by definition embraces Jesus, who is the way, the truth and the life (John 14:6) must not give their children to the lost to be descipled by the lies of the culture of death. Not only will that steer a child down a path that leads to ruin (Psalm 1, Mark 9:42), it also sustains/feeds the culture of death. Instead, let the culture of death collapse under its own lies that oppose God's design of procreation and families.
Godly societys are built from Godly families. Godly families are built from Godly individuals. Be fruitful and subdue!