First of all, I have more in common with atheists than religious people, so my intention isn't to come here and attack, I just want to hear your opinions. Maybe I'm wrong, I'd like to hear from you if I am. I'm just expressing here my perception of the movement and not actually what I consider to be facts.
My issue with atheism is that I think it establishes the lack of a God or gods as the truth. I do agree that the concept of a God is hard to believe logically, specially with all the incoherent arguments that religions have had in the past. But saying that there's no god with certainty is something I'm just not comfortable with. Science has taught us that being wrong is part of the process of progress. We're constantly learning things we didn't know about, confirming theories that seemed insane in their time. I feel like being open to the possibilities is a healthier mindset, as we barely understand reality.
In general, atheism feels too close minded, too attached to the current facts, which will probably be obsolete in a few centuries. I do agree with logical and rational thinking, but part of that is accepting how little we really know about reality, how what we considered truth in the past was wrong or more complex than we expected
I usually don't believe there is a god when the argument comes from religious people, because they have no evidence, but they could be right by chance.
All good atheists are open to the possibilities, because we do not have atheism as a belief, but as a word to express that we are a=without + theism=religion.
Personally, even if a deity showed up and perform a miracle right before my eyes, I would not convert without a massive discussion because my personal moral compass would not allow myself to worship a being that holds so much power, but actively refuses to reduce suffering in such a large scale, but that is just me.
If it had a good reason such as being imprisoned by an evil deity and just having freed itself, and coming back to us to help us, then it would get my full support and belief, after some scrutiny of course.
I mean, I'm pretty sure if 20 gods descend from heaven, a lot of Christians would stop believing there's a single god.
Being open to the possibilities doesn't mean that you'll change your mind once presented with irrefutable evidence, it means you're not limiting your mindset to a single possibility until proven wrong.
Christians are not open to the possibilities because they live a religious life that assumes God exists. Until proven wrong.