Garden of Eden was a setup...

[Thumpalumpacus]

OK, one at a time....
Evil does not exist, at least not onto itslef. Evil is an absence of Good.

And the corollary of that is that good is the absence of evil. By this logic, I could equally argue that good doesn't exist. Of course morality is relative. (It makes me wonder why you adhere to a system of religious belief which is pinned upon the idea that morality is absolute ... but that's another discussion).

Otherwise, you're simply asserting that good is the only truly existing moral quality.

Cold is the absence of heat
dark is the absence of light
evil is the absence of good

The first two are materials states, the third is an abstraction. Your analogy fails.

lets go out on a limb on this one....
disease is the absence of health
and finally death is the absence of life

Who created the viruses that kill people?

Who not only created the concept of death, but inflicted it upon every human being who ever lived?

God created Lucifer the most beautiful of His angelic creation (that's an easy one) and Lucifer rebelled against God and was separated from God and we now know him as Satan

Did this rebellion surprise your god? I was raised believing that the Christian god knows everything that ever was, ever is, and ever would be.

If your god knew Satan would go on to torment billions of people yet did nothing to stop this, then morally speaking, your god is culpable in those evil deeds. (Now, I'm not talking about Hell, so don't trot out Christ's sacrifice to demonstrate your god making right the evils he has permitted. I'm talking about the evils we see in this world, evils I've already mentioned such as diseases like cancer which strike haphazardly with no consideration of the victim's moral rectitude).

If your god didn't know that Satan would do this, then the obvious conclusion to draw is that the Bible is wrong about at least one pretty important aspect of your god's nature.