ImTheCaptain
I disagree with you
This itself is a common myth. Pick out a few alleged examples and I think you'll see the differences quite easily. Happy to discuss if there are any that stand out to you.
I spoke to a lot of people about this topic a couple of years ago, and it seemed everyone's path was different. Personally speaking, physicalism/materialism is easy enough to believe in a vacuum, but collapses under the weight of providing a coherent worldview. Determinism and fatalism are difficult stumbling blocks for me to get over, but the real breakdown comes at subjective morality. I believe that the Holocaust was objectively evil. I believe that it would always be evil, regardless of how many cultures indulge in Holocausts, or how many people approve of them, or how they might be written into the social contract. I think that most people believe that as well.
However, a physicalist cannot coherently hold that view. There is no good argument reconciling objective morality and physicalism, moral principles cannot be explained in terms of physics and chemistry, and moral truths are not objects with a physical existence. In the absence of a God or immaterial (yet existent) moral truths, things like genocide, slavery, and rape aren't actually evil, their morality is simply a matter of popular opinion. Again, I don't think many people think that way, but I think relatively few atheists/materialists/physicalists actually pursue their line of thinking to its logical conclusion and impact on their worldview.
Once the door is opened for the existence of immaterial entities (i.e. once we think of the existence of God as being possible), I think the various arguments for God's existence--particularly the cosmological and teleological--become very persuasive. And once you accept the mere possibility of a divine explanation for the life, death, and post-death impact of Jesus Christ, the Christian explanation is by far the most likely.
That's my $.02. Faith is a deeply personal thing, and different people view the same evidence in different ways.
so if the only reason you're not murdering someone is because God says it's bad are you really adhering to an objective moral