I heard part of an interview with Richard Dawkins in what WOULD make him believe in God and he finally said..nothing. Because he said if God spoke to him or if Jesus physically came back he would say delusion. If a message was written with the stars it would be trickster aliens.
And why do us Christians care so much and we go back and forth with you? Because we see you as that boy on the platform about to get hit by that train.