The wizarding world has many inherent prejudices, the most notable of which is pureblood prejudice against muggleborns and squibs. On a superficial level these view appear only to be a product of the nasty personalities of people like the Malfoys.
However this prejudice runs deep within wizarding society, so deep that pureblood families would rather breed themselves in complete degeneracy than broaden their gene pool with non-purebloods. Whilst we can write this off as pure pig-headed dedication to ideology. I believe that there is a much deeper, rational reason behind pureblood prejuidice.
- Why pureblood families continued to inbreed to the point of degeneracy.
- Where pureblood prejudice came from and how it developed
- The effects of seclusion on wizarding culture and stigma
- The genetics behind squibs/muggleborns and why they are hated by the pureblood supremists.