I never heard of Libretarian Christianity, so of course I'm curious, and will check it out. But I will be honest with you, I became a non-believer after reading the scripture - both the Torah and the Bible. There were a lot of things that didn't sit right with me on the moral basis, and as I learned more about the universe and life on this planet it was also on scientific basis... So I doubt there is a way back for me.
With that said, I do have a strong moral code, and I know Christians such as yourself, Muslims and jews who are very principled, and are closer to Humanism (where the wellbeing of all humans precedes, nationalism, or any sort of tribal adherence, and dare I say many religious commands). So I find that even though we might have some theological difference, we still have more in common morally and politically than what sets us apart.