It's because people, by common sense and then sustained by scripture, accept the fact that freedom is real and relevant in the universe. So they see the complicated organization of an organism, and based on this understanding that freedom is real, they naturally and correctly identify that the organism is chosen to be way it is as a functional whole, intelligent design.
Creationism validates both subjectivity and objectivity, it is a matter of opinion what the agency of a decision is, and a matter of fact what the result of the decision is. This is why creationists always talk of God, the creator, in terms of
faith, which faith is a form of
opinion.
Evolutionists think differently. First they say only materialistic explanations are valid, therefore subjectivity must be destroyed. That is why evolutionists deny freedom is real, so they can cancel out agency, and conceive of good and evil as fact.
Schoolbook for the Hitler Youth
A
factual outlook on life.
https://archive.org/stream/NaziPrim...iPrimer-TheHitlerYouthManual#page/n5/mode/2up
The unlikeness of man (body spirit and soul are fact, therefore goodness and evil are fact)
https://archive.org/stream/NaziPrim...iPrimer-TheHitlerYouthManual#page/n7/mode/2up
The Christians above all reject the race idea.
https://archive.org/stream/NaziPrim...iPrimer-TheHitlerYouthManual#page/n9/mode/2up
The conclusion has been drawn that the types today have developed gradually out of older forms. ...The study,.....is
called evolution...associated to
Charles Darwin.
https://archive.org/stream/NaziPrim...Primer-TheHitlerYouthManual#page/n27/mode/2up
And today still the vast majority of evolution scientists conceive of love and hate as electrochemical processes in the brain, which can be established as fact, leaving no room for opinion whatsoever.