Funny, my brother had an absent dad even before my parents split up. And yet he's always been a calm, kind hearted and pretty much a stereotypical nerd.
I on the other hand was raised mostly by my dad for the first twelve years of life; enduring the slipper, getting screamed at, enduring long winded lectures about algebra and quadratic equations at age seven and having my overactive imagination laughed at and mocked. And yet I was the hyperactive one; constantly running around like a headless chicken and sleeping maybe two hours a night. No wonder my grandmother enrolled me in ballet lessons. Oh, and I was born with a vagina, not a penis. Your statement is bunk.