No. I agree that Genesis has too many holes. I could never figure out how Cain and Able found women to marry when there shouldn’t have been any. I think maybe that Adam and Eve were thought to be the first of their group in the area and outsiders were somehow ignored. But, I do believe in intelligent design. I really don’t think we are alone.
There’s a fundamental assumption made by the anti-intelligent design crowd, that intelligence is inextricably tied to matter. This assumption leads to the belief that highly organized matter had to evolve first, for intelligence to become possible. Unfortunately, when pressed for evidence of where all the matter (and energy) originally came from, they fall back on wildly complex mathematical calculations that result in a conclusions like the aforementioned, that it hatched from a magic egg . . . that somehow popped in from oblivion, already endowed with this amazing capability.
Genesis does not say Cain and Abel (and later Seth) were the only three children of Adam and Eve. You are assuming Adam and Eve had no other babies. Adam was 130 years old when Seth was born. Eve surely bore more than three children in 130 years. There are no offspring of Abel. Cain killed him before the mention of any second generation. Cain married a younger sister and so did Seth, who Eve explained was appointed by God to be the replacement for Abel. Cain and Seth married their own sisters, but at that time the human body was in the original form (created to last forever, before the fall, before vast generations of degeneration) and siblings reproducing with each other was not what it would be currently.
The very best way to figure out what is in Genesis or any book of the Bible is to pray for the wisdom to discern its meaning, read it for yourself, read it all the way through, setting aside thirty minutes a day. The Living Word explains itself but you must read it all and read it for yourself and never think that a single passage can be fully appreciated strictly on its own.