Even if you ignore these iron-clad proofs against Allah's divinity, there are plenty of emotional and spiritual reasons to disregard him. A perfect example is how merciless Allah is said to be. According to Islamistic tradition, Allah is believed to watch you like a hawk day and night, just waiting for you to disobey him even once. The second you break Allah's arbitrary rules, you are condemned to Hell forever. The only way to escape this unjust condemnation is to grovel like a maggot at his feet, sniveling like a child for him to forgive you. Even if you believe that you've been absolved, you always tremble in fear that you might unknowingly cross him again. This ever-present fear is used as a psychological tool to brainwash the follower into being even more of a mindless Allah-ite.
This is a sharp contrast to our loving and forgiving God. We know that God watches you like a father day and night, just waiting to help when you stray the path even once. The second you break God's wise rules, you condemn yourself to Hell, possibly forever. The only way to escape this just condemnation is to kneel humbly at His feet, asking like a child for him to forgive you. Once you are absolved, you always live in respect of the Lord, so you won't cross Him again. This ever-present respect is used as a learning tool to mold us into being even more of a believer in Christ.