Ok.....So you killed off Religion...

[Faith No More]

Jesus said, "..the kingdom is within."

So, can we agree that God is essentially "good", and that our natural instinct is to be that way?

No, I think our natural instinct is to survive, and due to our evolutionary path, what you have labeled "good" has become quite beneficial to our survival as a whole. You have then recognized these genetic instincts and incorrectly attributed them to a god.

I think the pacifier analogy isn't deep enough though. God is tied to our being in an emotional way, not physical.

My son is also tied to his pacifier in an emotional way. He desires it, because it is comforting. The only difference is that what he is tied to is a physical object and not a concept.

I would venture to say that its more like my teenagers breaking away from the family nest, and certifying their adult-hood. But, in each case they have made their way back to us!

But did they need to, or did they simply desire to? Would they have been okay on their own?

We can try to move away from God, but if He is instilled in us as "good" and "moral" then we are connected. This is self-evident, because God is essentially thought of as good.

What you have here is simply a metaphor for those evolutionary benefits I mentioned earlier.