I've not destroyed anything. You asked how theists would respond if scientists succeed in creating life. You were apparently unaware that WT literature has answered this question directly.
If scientists ever did construct a cell, they would accomplish something truly amazing-but would they prove that the cell could be made by accident? If anything they would prove the very opposite, would they not?
You apparently misunderstood JW teaching as meaning there is a theological barrier to scientists ever creating life from non-living matter. In fact WT literature says scientists may well succeed, but they argue that would be different from life arising by itself.
You're welcome.