Adam and Eve infact did not exist

I am going to kill 3 birds with one stone that the fact Adam and Eve didn’t exist. Science proves we evolved from Homo sapiens to modern humans it is scientifically proven respectfully if science says something a logical source. I do not care what your religion says. We originated from Homo sapiens there proof of evolution in our race itself because the first humans on earth where black and turned white overtime. Say if Adam and Eve where real firstly they’d have kids probably and their kids would marry their own siblings and become a never ending cycle of inbred people and our population would be wiped out due to the genetic illnesses and mutations