The point is we dont know, and the fact that God is not coming down from heaven and telling us he exists is NOT rational evidence that he does not exist and is not the designer of the universe.
Then you think that God coming down from heaven and telling us he exists is rational evidence that he does not exist or is not the designer of the universe? See Absence of Evidence Is Evidence of Absence.
Then you think that God coming down from heaven and telling us he exists is rational evidence that he does not exist or is not the designer of the universe? See Absence of Evidence Is Evidence of Absence.