Ah yes, objective morality and the ‘maker argument’ which can be summed up to “if I go out in the woods, step on shit, look around, no animals that I can see, god must have shat himself”. That’s the thing - you can’t prove god exists. You filled in the gap with a mythology and think it’s the only explanation for life to exist. So you cannot bring proof. So you cannot convince an atheist that god exists because you yourself don’t even know that.