Man WAS trying. Not sure if you were aware but the forces of good were battling to overcome Nazism whilst they were exterminating the Jews. God allowed the holocaust to happen, the rest of mankind fought to defeat it the best they could.Millions of soldiers died fighting the nazi's. Either God doesn't exist or he watched the holocaust happen and didn't lift a finger
Mankind is given dominion over the earth:
Genesis 1:26
26 And God said, Let us make man in our image, after our likeness: and let them have dominion over the fish of the sea, and over the fowl of the air, and over the cattle, and over all the earth, and over every creeping thing that creepeth upon the earth.When you're given dominion you act as governor over that with which you've been given authority, but from the perspective of the giver you are acting as a steward on his behalf.
A steward is one given authority by a greater power to manage a situation. A king would often have governors or stewards over territories within his kingdom.
God is the creator and king and empowers mankind as stewards in that they are given dominion over creation to govern it and all its resources.
The problem of evil is not of God, but of man. As believers in Christ we're commanded to spread the gospel message and help others understand the reasons for the hope within us.
God entrusted humanity to govern the world. The suffering within the world is a result of our actions. Some see suffering in the world and blame God, but God already established a means to help mitigate that suffering......you and me. Further, the problem of suffering (evil) is further resolved one soul at a time as folks turn and give their lives to Christ in humble surrender.
Yet the world loves it sin and replaces good with evil and evil with good. It's backward and opposed to God and yet we blame God when he doesn't stop "the other guy's sin".
If God were to intervene in man's evil choices then that would mean he would defy your will and force you into his. That would mean you can't continue to enjoy pornography, adultery, alcohol abuse, recreational drug use, murder, rape, torture, idolatry, child abuse, etc....pick your favorite poison and that would be gone.