The worst act of mankind was killing the Messiah, and that was God’s redemptive plan for salvation of sinners to be reconciled to Himself.

God is not obligated to intervene, nor is He less than holy perfection, by intervening or not intervening on an action of wicked men and the nations. By will of decree, He allows wicked men to fulfill their evil desires among other inhabitants of the earth, and they will be judged according to their deeds.

If you create a standard in your own mind that you determine God must fit into in order for Him to exist, or for you to believe, you will likely die an unbeliever and be satisfied with your own standard. But God’s own standard of justice and wrath will be satisfied in your eternal judgment. Only then will you understand how wrong you were.

For most people who think and believe in their own standards imposed on God (to their dying moment), they finally learn who God is (in His perfect wrath) when they awaken in judgment. For those who accept and believe otherwise (that God is also perfect in mercy and grace) they find grace and mercy in Christ and awaken in His kingdom.