> Yikes. Some people have different belief systems, some of those belief systems believe in the afterlife.
That is fine, there are also people who follow the Flat Earth Society (with 'members all around the globe') or who follow the flying spaghetti monster (my wife is a card carrying member). Honestly, I actually thought for quite some time the Flat Earth Society was a joke. I wonder how many members consider it as such.
Now, you may have such beliefs. They're not based on facts though. And when it comes to beliefs, you should prepare to get ridiculed as they're not fact-based. When you face such ridiculousness, you may stand fierce, and decide to prove your point. But if it is not a factual-based point, and you are unable to prove it, do not be surprised when you are not taken seriously.
For me, belief is very simple. I am not going to believe in a God, and I only need to look at the suffering happening in one country in this world (which I am not going to name since the name is irrelevant). The immense suffering of people in this country, on both sides of the conflict, leads me to the simple conclusion that if there is a God it must be a cruel, conflicted being. Besides, why can these religious people not agree on the basics of their belief systems? Why would a loving God divide people like that?
Instead, I take a more simple approach to God and Devil. They're just bastardizations of the words and concepts of good and evil, and that is it. Concepts which had to be enforced onto people when law was weak, unjust, and fundamental democratic principles like Trias Politica did not yet exist. As far as these concepts ever worked well to begin with, we no longer need God and Devil.