"Wa'll shucks...hepn's alla tyme up he'ya."
"My muthr wuz tellin' me just 'tuther day hows her and Unc'le Enius had a "special" party ..just them two, after ev'ry body went on home on her 12th birthday."
"I allay's a wundered how a'come brother Elmer looks alot like Unc'le Enius."
"Sissie-Mae's 12th a'comin next week and boy have I got a present for her!"
Does this MORON (the "Professer" mentioned in the article) even have a branch in his own family tree? There are VERY good reasons for preventing insest. Both genetic and Biblical.
Good biblical reasons. It's not as clean cut on genetic grounds.
What incest will do is to bring out recessive genes. These genes can be either bad or good, depending upon the particular allele.
Actually, biology doesn't support your argument; worse yet, the argument is flawed because it proceeds from the notion that evolution is a progressive path to an idealized perfection.