Except there is no such thing as God, nobody created us because we evolved, and free will is an illusion born of the completely stupid idea that we are lucky enough to live in the only moment which can be changed out of the last 14.5 billion years. Apart from those small problems your theory is fine.

We can all agree there is right and wrong. How something like the Holocaust is wrong.

Listen to what you are saying. If we all agreed it was wrong it could never have happened.

Then why were there no humans when dinosaurs existed?

There were no dinosaurs DUMMY! Haha! Thought you were clever, didn't you?

Satan and God both conspired to put the bones in the ground in order to test your faith. They are both a couple of scholars and have been arguing with each other for millennia about how dumb people are. Satan argued that people are dumb enough to believe a bunch of bones in the ground prove dinosaurs existed, but God disagreed. They then shook hands and had a gentlemen's bet on the matter.