This is the crux of the issue right here. Many people cannot separate the meaning of the symbol from the symbol itself. You see that in fundamentalist Christianity where they think that if someone is an atheist and rejects God, they are untrustworthy and have nothing stopping them from killing people. That's because to them, the meaning of goodness and kindness if fused with the symbol of God. If you don't have God, you don't have goodness and kindness.And it wouldn't make any difference, anyway, because it's a mythical story, now. It's no longer about being factual. It's about conveying an ideology. Something you don't understand at all.
Likewise, fundamentalist atheists fuse the symbol of the literal factual story about Jesus with the message of the story, such as love your enemies. To them, if Jesus didn't actually exist, the gospels have no meaning.
If you've ever read James Fowler's Stages of Faith, he talks about that being a feature of those in the earlier stages of faith, the "mythic-literal", and in synthetic conventional (traditionalism). It's not until Stage 4, the Individuative Reflective stage where people are able to 'decouple' the meaning of the symbol from the symbol itself. They can see the same meaning in other symbols, and the "fact" of the symbol becomes unimportant.
This is a completely foreign idea to Stage 3 faith and earlier. "If you don't believe in God, what keeps you from killing someone", Or, "If Jesus didn't really exist, or the stories aren't factually true, the whole Bible is untrustworthy and should be ignored". Exact same thing. The idea of symbolic truth is quite literally beyond what they can grasp yet, even if they are getting the meaning symbolically without realizing it. Fowler's research shows this to be true.