Gimel's comment is compatible with my analysis.
So you admit that your particular type of "Christianity" is really a magic system. The ideology rests on magic thinking, to support your magic system, you also need to create simple ideological imaginary representations of "the world", a type of straw man. Like magicians, you confuse mind concepts with reality and human language (including mathematics and art) with reality. Well, that's also religion and magicians are religious.
Still, they cannot alter the real world with their magic, only alter it the way others have been able to: interacting with it, using technogy, using culture and influence other humans.
The world is still old even if in your imaginary world it's not. And you fear imaginary beings that don't exist outside of your culture and imagination. To other common mortals, you may appear to be insane, it's a result of living in an imaginary world. Unfortunately, alienation also comes with other consequences. It can lead to harm and even the illicit justification of evil. This could harm you but also innocents.
Magicians are often aware that their symbols are representations, but they also usually subscribe to other fallacious means hoping to "charge" and "link" them to reality somehow. If they really believe in the beings they create and imagine, they may also be superstitious. We know where that leads, like accusing innocents of attacking them due to their own irrational fears and inability to interpret reality.
Like harming someone else due to the false belief that an illness is due to a magic attack. Or burning "witches", ironically. A Jehovah's Witness might suddenly steal, trash or burn one of your possessions, if they somehow believe that it's cursed with a demon inside, due to their own superstitions and anxieties...
The scientific method permits to develop knowledge that rests on reality. This includes the age of Earth that you strangely reject. Do you reject it due to your motivated blindness, justified with the lie: "the age of the Earth was not discovered by God revelation, therefore it's a lie"? Does this also mean that farming done by cultures before YHVH existed, was also revelation by YHVH? If so, do you assert that ancient Sun gods were also YHVH? An irrational train of thought leads to interesting implications.
What of the simple constatation that ancient humans knew little about the natural world and had their own nationalist origin myths? Like those compiled in Genesis, and older ones from Babylon, Canaan, Sumer, Egypt, etc. Returning to their level of ignorance is not the answer. Just like drilling holes into heads is not the answer when you have Star Trek fictional technology to repair arteries.
Some sarcasm: but you don't accept that Papa Legba is superior to Jesus and Osiris as an intermediary between life and death? If you're a natalist, why not embrace a fertility religion? Not focused enough on the control of women? The subjective influence of your own culture, random chance?