There was not a world-wide flood that killed all creatures except a few dozen animals and a couple humans on a boat.
The earth is more than a few thousand years old.
Life as it exists today evolved over billions of years as a result of natural selection. It was not created over the course of a week.
A young man was not resurrected after being crucified.
Angels did not destroy Sodom with fiery meteors from heaven, and no woman was turned into a pillar of salt by an omnipotent (and benevolent!) god.
A young man did not cure leprosy, create bread and wine from nothing or transmute water into wine, walk on water, heal the blind, or otherwise use magic to cure illnesses.
I can go on.
Btw claiming that there are no objective morals is not the same claim as “Christianity objectively determines morality.” My claim is about whether an entire class of things - morals - are objectively determinable. Yours is that they are objectively determined by a specific book.
By definition supernatural miracles cannot be explained by science. That’s like their entire point.
You not understanding the scientific explanations for events and history is not the same as the only explanation for those events being your god.