We're fighting over how much of reality science can actually account for. If it's just a mechanical existence through and through, then what is the point of being nice, polite or honorable. It was the ascended masters who told us human beings to lower hostility among one another. To reach out to higher planes of conscousnes. But if they don't exist, then why bother? Why don't we all just give into our lower animal nature, like Q does, and be sewer dwellers? Maybe you and other atheists don't like Christianity because of all the guilt. But don't start kicking other religions that try to raise up human consciousness into something respectable, something elegant and yes, something masterly.
If Christianity really worked to lower the hostility among human beings, I would give it more consideration. Higher consciousness is a possibility that science doesn't discount. If consciousness is a measure of information processing then you can always be aware of more information.
Even within a mechanical existence (and I don't believe that the universe is completely deterministic), we still have human society and the planet to deal with, those don't go away.