That is a statement of faith on your part. Ultimately, it is a matter of faith which side we choose. You are SURE it can be done, but we just have not figured out how YET. Pure faith, by the facts, it is currently impossible, but by faith it is just a matter of time. Maybe, maybe not.
In the meantime, the fellow has made some testable predictions. Prove them wrong and you have negated his hypothesis. Isn't that fair enough?
This gets a little silly, you know. We're talking about the chemical synthesis of organics.
Can we add another prediction to a very short list?
1) OK, well, there's never going to be another transitional fossil found,
2) OK, well, there's never going to be another organic compound synthesized.