All of us have a "direct line to God," in the form of divine revelation and/or natural law. It's only modern relativists who pretend that God's will is an unknowable mystery so we can just do anything we please.
I think God was pretty clear that he is God, and we are not. Is he unknowable - no way. Is he a mystery - absolutely.
It is not our job to decide who will be saved and who won’t. We are given salvation through Jesus because God is a very forgiving God. God will forgive those who are too afraid to face a long painful death, as he forgives all of our other sins. It takes all of my energy to concentrate on my own sins. I fail to see value in judging those who have already been judged by God himself.