For what it's worth, my personal disbelief in ANYTHING supernatural is based on reason and my own experiences. I think we as survivors are often forced to examine our own lives once we are ready, and I can't imagine any of ones beliefs/disbeliefs that stem from anger and hatred will last very long if one is truly being honest with themselves. I think both sides clearly show that belief or disbelief and hate are not mutually exclusive.
I like what Mark Twain had to say about man's journey for truth:
"We are always hearing of people who are around seeking after truth. I have never seen a (permanent) specimen. I think he had never lived. But I have seen several entirely sincere people who thought they were (permanent) Seekers after Truth. They sought diligently, persistently, carefully, cautiously, profoundly, with perfect honesty and nicely adjusted judgment—until they believed that without doubt or question they had found the Truth. That was the end of the search. The man spent the rest of his life hunting up shingles wherewith to protect his Truth from the weather. If he was seeking after political Truth he found it in one or another of the hundred political gospels which govern men in the earth; if he was seeking after the Only True Religion he found it in one or another of the three thousand that are on the market. In any case, when he found the Truth he sought no further; but from that day forth, with his soldering-iron in one hand and his bludgeon in the other he tinkered its leaks and reasoned with objectors."
It's okay to find the faith to saunter forward
With no fear of shadows spreading where you stand
And you'll breathe easier just knowing
that the worst is all behind you
And the waves that tossed the raft all night
have set you on dry land
- The Mountain Goats - "Never Quite Free"