That's a pleasant way of admitting that there is no evidence of the first required step in the entire Evolutionary process.
When one has no ethics and no evidence, simply state that no evidence would ever convince "non-believers."
No that is a polite way of saying that there is no way to open up an ignorant Creationist mind with the truth. But if you insist on evidence may I suggest that you go to your local museum and examine the wealth of physical evidence there.
There is (protein molecules are formed in various natural ways) but no truly living cell has yet been produced in the lab. What of it? Are you saying that until that final step is taken, your sticking with Noah's Ark? No science is acceptable to you, until it has achieved finality? And until then, you're sticking with mythology? I suppose you won't ever visit a doctor, for anything, until all disease is conquered. Neat way to think. You happy with it?