Let me help you with that. The microbial world is constantly trying to attack, parasitize, and kill you.
The moment your immune system fails, you die a slow and miserable death, with tremendous suffering. I worked in a hospital, I've seen it happen. People rot from the inside out, like corpses that are still alive. I'll spare you the details.
Some innocent children are born with a non-functional immune system, they begin to die immediately and must be kept in "bubbles" to exist at all.
If there is a god, he fucking hates us. I therefore choose to believe that there is no god.
You are completely missing a whole lot of it.
God gives a certain amount of free will to men and angels.
It appears from Ezekiel 28 that before the Devil (a powerful, now-fallen angel) chose to fall, he was the one who was given authority to protect the earth, and particularly the first people.
The Devil used his free will to corrupt himself; he tempted Eve to go against God in the Garden.
Eve and Adam listened to the Devil, and used their free will to go against God.
Think how you feel when your teenage kids ask you for the car keys. You love them, and hope they will have a good time. You give them the keys and tell them to drive slow. They use their free will to disobey and drive fast. They get into an accident, total the car, wind up in the hospital. The damage was caused by their improper use of their free will. Their lives are forever changed. Yet, you still love them (even though you are angry with them), and you do everything that you can to see that they are healed.
God was angry, and still is in some ways. But He is, also, love. That is why we are finding cures for the DISEASES THAT WE ARE BRINGING ON OURSELVES BY NOT FOLLOWING GOD, OR BY TOTALLY DENYING HIM.
It ain't God's fault. It's ours. And we make it worse when we thrash out in anger against Him.