Yes nurture has an effect, but the current science suggests that our DNA has an even greater determination of who we are than we ever imagined, the degree of which is incredibly surprising and non-intuitive. It would suggest that we become who we are determined to be, no matter the early childhood variables.

https://podcasts.google.com/?feed=aHR0cHM6Ly93YWtpbmd1cC5saW...