The same genetic evidence that shows that Australian aboriginals and Hutus are humans and descended from a common human ancestor also shows that humans, chimpanzees, bonobos and gorillas are apes and descended from a common simian ancestor. Why do you find it so difficult to understand this evidence?
One thing that evolution ignores is consciousness. For example, everyone in these discussion forums have human DNA. However, we do not all think the same. There are two extremes of intellectual adaptation; religious and atheist. These often cannot see eye to eye.
The brain and consciousness are not as uniform as human DNA. You cannot just look at my DNA and tell me my attitude toward reality. The reason is my brain is not just influence by my DNA, but also by external input through my five sensory systems, as well as the internal/external neutral synthesis of the two. Consciousness is wider than the DNA?
In story of Adam and Eve, neither were born in the conventional biological way. The bible was not taking about DNA or biological. After Adam and Eve are exiled then they used biological reproduction. What made Adam and Eve unique was free will and choice, which are connected to their brain and consciousness. The changes into Adam and Eve occurred within their consciousness and not their DNA. They could produce human sons with human DNA.
The DNA is very conservative and based on template relationships. Consciousness is more open and moldable to external influences through our fives senses. The DNA is not moldable with the cells having many failsafe methods to prevent changes.
The first humans to form civilization, had human DNA. This was the same human DNA shared by those who maintained the old ways of migratory herding and gathering. The difference was not in the DNA, but in in the brain and consciousness. A new species of humans appears with the same human DNA, based on changes within the brain and consciousness; updated operating system based on the interaction of nature with nurture.
The problem science has is they have no consensus definition for consciousness that is as straight forward as DNA, for physical attributes. They take the shallow path of comparing the outer shell and ignoring the guts of consciousness. The consciousness path is the path taken by religion. New ideas like God, has a profound influence on the evolution of human consciousness. It places a type of external force, above the DNA and its instincts, allowing consciousness to break away from DNA based instincts; will and choice.
From the consciousness POV, modern humans appeared with civilization. This was not due to DNA, but the impact of consciousness on the DNA, with consciousness connected to both internal and external data collection. The external plus internal added up to beyond just the impact of internal human DNA. The first civilizations became the milestone of consciousness from which all that follows can be traced; first conscious humans in the modern sense.