I would like to understand through hopefully cordial discourse and conversation why people of established faiths (or simply theists) seem to be so unmalleable with their belief.
Religion requires one to make relatively significant leaps of faith to be able to absorb and accept its principles. It asks you to accept the testimonies of people from thousands of years ago, it asks you to accept that a text was written by God, it asks you to accept that God is this way because someone else said so. Faith also asks that you ignore the works of truly extraordinary people throughout more modern history which challenge the existing hegemony of faith(things like fossils or bones which should in theory disprove certain universal beliefs held among abrahmic religions like the story of Adam & Eve and that the earth is just a few thousand years old).
I understand in abstract that when one has spent so much time holding a singular belief, that rejecting that belief would feel like years having been wasted or one could even face being cast out from their community. And notwithstanding the foregoing, the subsconscious fear of trespassing into a way of thinking that is foreign to anything they have experienced before is also an understandable consideration for why it may be hard to change ones belief. Yet with so much information, data and research that exists and is readily available, it is hard to understand why religiosity is still prevalent. If something was written or said by one of divine origin; that teaching or doctrine should be universally applicable and viable throughout history, otherwise it is not unreasonable to say that it likely was not written by someone who is all-knowing and all-powerful.