Bioengineering. In other words, if man can do it surely it is possible that somebody or something else could do it. ID is a fact, we can do it, we can observe it, we can repeat it. Adaptation and mutation are facts. We can observe them as well.
To accept one and not the other or the possibility of the other in the face of common sense seems kind of silly to me.
While your "proof" by itself doesn't really prove anything, your response is at least well-reasoned and intelligent. The next question is who created the "somebody or something else?"
Saying that something can happen is not evidence that it did. That would be like saying that someone is a murderer because they could kill someone if the wanted to.