And it is dangerous to some (not all) on both sides of the crevo debate.
Those whose most certain source of knowledge is sensory perception and reasoning those who do not have spiritual ears to hear - may receive the theory and extrapolate it as proof there is a natural explanation for everything and therefore Scripture or indeed any divine revelation witnessed by anyone is not real and not to be trusted. So for them, evolution may become their main reason to aver that God does not exist and thereby suffer the second death.
Conversely, some of those who say they believe in God and Scripture - may also accept and/or apply mortal reasoning to the words to conclude that if evolution were true then therefore God does not exist after all. For such a one, his faith in God hinges upon his own ability to comprehend Him and therefore, should he become convinced of the dangerous idea, he will deny God and likewise suffer the consequence of the second death.
But the cause, albeit on both sides, is the same, i.e. man rejecting any God he cannot comprehend with his own mortal mind. To both, God is merely a hypothesis He is not real to them.
No one who actually knows Christ is at risk:
Love Him. Believe Him. Trust Him.
To God be the glory, not man, never man.
That seems to be the normal progression.... But jeepers, the flaw is in the first step the expectation that sensory perception gives us an exhaustive picture of reality, and that reason itself has no limits. Both presuppositions can be shown to be false.
But if we want to embrace such notions, really, we're in tough "ontological shape" because our epistemology is faulty. As you point out, to reduce the world to the competence of the human intellect to make man the measure, in other words is to falsify reality. And thereby, to falsify one's own position in it.
I gather it is the persistent desire to live in untruth that causes one to suffer the second death....
Thank you ever so much for your beautiful essay/post, dearest sister in Christ!