Whenever I hear forms of this argument I picture the church chiding Galileo saying that Aristotle had disproven heliocentricity because stellar parallax had not yet been detected therefore it never would be, damn the other overwhelming evidence. Or I picture curmudgeons saying "If God had intended man to fly he would have given us wings."
Your position equates exactly to this: Forget all the overwhelming evidence in support of your position. Forget all the repeatedly demonstrated flaws in my own position. Since you haven't done absolutely everything yet, you're wrong. Since man can't create life in a lab after two hundred years trying, then obviously the universe couldn't have done it with 14 billion years trying.
Or put another way:
You haven't created a universe. Therefore God.
And the side most guilty of such actions are the believers.
We don't know how this stuff happened, therefore we know how it happened. God.
That's not a joke, by the way. It's what you are doing. It is very much like the ghost hunters who, when confronted with something spooky that they personally cannot find an immediate explanation for say I don't know what it is, therefore I know it is a ghost.