@felizz_happy thanks for your question! I would agree with you that God has given humans special and unique capacities and roles that make us distinct from the animals. However, that doesn’t mean that he accomplished this in one supernatural instant. He could have given us these capacities through a gradual process like evolution.
At BioLogos, we think the evidence is overwhelming that death and decay have existed from the beginning of the universe (and life itself). The natural laws of the universe depend on decay. The whole earth was never a deathless paradise.
Your question about birth defects is interesting. So, it’s ok for God to allow death before the “Fall”, but not ok for there to be birth defects? Birth defects are part of the natural order—living things pass on DNA to their descendants, and some of them have mutated DNA that leads to physical/mental problems. You are asking whether these defects are hard to explain by theists. Perhaps…but only in the sense that all evil and suffering are hard to explain. Why does God allow birth defects today—many of which lead to incredible pain and suffering? Perhaps you can say that birth defects happen because of Adam’s sin, but God still has the power to stop them, and he still created a world in which such things are possible.
It seems we are very quick to apply our standards of perfect and imperfect to God’s actions. Then we envision a “perfect” world before the Fall, and an imperfect world after the Fall. But this is neither the story of natural history nor the story of the Bible. Natural History has no record of a time when death did not exist (surely that has to count for something), and the Bible is much more interested in the solution to death than the origin. In fact, the story of the Bible is how God is preparing a new creation that will be perfect (“heaven” or “the kingdom” or “new Jerusalem”, etc.). This creation is somehow a necessary stepping stone to this new and more perfect creation, which we have glimpsed through the resurrection of Jesus Christ. The death and suffering in this creation will all somehow become eternally meaningful when the new creation is revealed. I believe that humans have the unique ability to sense the new creation “underneath” the existing creation (perhaps that is part of what it means to have a “soul”). We know intuitively that death is not the end of us; that we are eternal beings. We know that our temporal existence is a small thing compared to eternal glory. And we give thanks to Christ who has shown us the path to entering the kingdom and participating in God’s work of new creation.
Thanks again for your question. Feel free to continue the conversation. I hope others can jump in.