AB,
Looking at human history, a conscious desire to find God or a spiritual source of things would appear to be a natural part of our human nature, and something difficult to explain in logical scientific terms.
Wrong again. It's easy to "explain in logical scientific terms". We're a pattern and explanation-seeking species that tries to understand why and how things work. Gods have always provided convenient answers to these questions, at least until better explanations have come along - think Thor and thunder, the creationist's god and evolution etc.
The point about science is that it begins with guessing, and then tests the guesses. Theology on the other hand begins
and ends with guessing - that's the problem with it.
It certainly sets us apart from other animal species.
So does bungee jumping and twerking. So?
The modern secular trend seems to want to deliberately ignore this built in desire...
Wrong again. "The modern secular trend" (if there is such a thing) doesn't "ignore this built in desire" at all - it just requires that the claims of fact it produces be examined and validated before they are privileged in the public square. The traditional theistic "trend" on the other hand wants to skip that bit.
...but in doing so they would be reducing themselves to being just another species of animal with no spiritual attributes.
Another
non sequitur. It's not "ignoring the desire for God" that does that, it's the
evidence that tells us that.