Why is the world dark and evil?

 Why is the world dark and evil? Is it that mankind should be destroyed when they have been corrupted to the utmost?

The answer from God’s word:

“Man lost his God-fearing heart after being corrupted by Satan and lost the function that one of God’s creatures should have, becoming an enemy disobedient to God. Man lived under Satan’s domain and followed Satan’s orders; thus, God had no way to work among His creatures, and was all the more unable to win fear from His creatures. Man was created by God, and ought to worship God, but man actually turned his back to God and worshiped Satan. Satan became the idol in man’s heart. Thus God lost His standing in man’s heart, which is to say that He lost the meaning of His creation of man….”

from “God and Man Will Enter Into Rest Together” in The Word Appears in the Flesh