[racist drivel]
You have no idea how recessive and dominant genes work, nor how they are passed on between generations. Go play with some Punnett squares
And not one word of explanation. Helpful. This type of dismissive attitude, without so much as explaining how he is wrong, is pathetic.
What is there to explain or argue? This is no different than asking a civil engineer to engage in a serious discussion with a "9/11 truther", or an aerospace expert to convince someone who's convinced the moon landings were faked. It's waste of time, because the opposing party is clearly unwilling to spend
any amount of time and effort to learn the basic concepts of the respective field, and will solely aim to win the argument by rhetorical smoke and mirror tactics, not scientifically adequate reasoning.
Simply saying "you are wrong, and ugly" is no argument.