I think how you see it is very reasonable. God is a person, not a human, a person. He feels anger, sadness, etc but much different to us humans. Though, His anger is different from our own. He doesn't create terrible things in hate to us, He loves us, but like a Father patience runs out. And like a Father, whatever we do, He will always love us.
Satan was once an Angel, but Satan wanted God's powers so God banished him to Hell. Satan is not the ruler of Hell, he is in it like every other person burning in the flames of Hell. To me, we are the ones who created evil, because even though the idea was laid out, we led ourselves to it.
I get what you mean on religion feeling man made, because that's how I feel about other religions (though, I respect all religions, every since once of them other than Christianity seems so man-like, not from their "God" because it seems that their "God" does not have nature obeying them, and their "God" seems unclear or have no intentions.)
Anyways, there is one lie by Satan and it is the most famous lie. I'm sure anyone has heard this before, "If God is real, why does he allow me to suffer?"
Away from that, us as people (human beings) have a consciousness that indeed tells us what is wrong and what is not. This was made in God's image, our minds for that matter. Ask yourself, why haven't you killed yet, what is stopping you from it? Why haven't you stole yet, what is stopping you from it? What is the point of holding yourself back from these things? Now, you may respond with, "I'll go to jail." But, if you have the chance to not get caught, would you still do it?
Well, I'm hoping your answer was no. Because you'd be weighed down by it, you'd feel this overwhelming feeling of darkness surround you. And maybe this little bit of laughter, not your own, it's a Demon's laugh. Because Demon's hate humans, they laugh at your sin, because behind your eyes and soul there is a demon lurking inside you, crawling deeper into your shell.
But you have anger, right? Anger before even? But, this is a different anger, because this anger is your own. Anger at the demon's beautiful lies. You are a just a vessel to them, a puppet and nothing more. A vessel of a soldier, a weak soldier that had no hope in life but doing what they wanted (what they wanted was fake happiness, because they were blinded by the beauty of the rose that had thorns). So weak that it finds happiness in things that will last seconds, but will end in an eternity of pain.
And the good? Heaven perhaps? Heaven was never found. Just a red, fiery pit of pain, depression and anger. Every little thing that this Earth posses of evil will be found there. Just as one. Think of it as the sun: a beautiful pit of fire that will burn you when you get their, but whilst on Earth as you look a far, it seems beautiful. Yet this "sun" does not give you light.
How do we know that Jesus was the son of God? Because God created nature, so nature is the only thing that truly obeys God. Jesus could heal the sick, walk on water, move mountains, raise the sea, he had it in his very hands. He could control these things to His wish. Because nature is the only thing that obeys our creator. Everything wind, every drop of rain was on God's command. Not our own, not as people. We are what destroyed humanity, not God. Us and the Devils. We destroyed the only creation God could have in his hands, that creation was our home. And even that we destroyed.
Think of it as we led this pain to ourselves, and we were held responsible on judgment day for biting on the hand of our Father, our creator. Expecting nothing from it.
That's how I see it, as a war between good & evil, Angels and devils. One side loves people, the other side fakes it's love only to blind them to turn their backs and reveal true hatred. Burning hatred, you could say.
Anyways, nice views, good to see other views so here's mine :D
(edited for grammar mistakes)