"Not entirely," Dumbledore explained. "An Obscurial not only means danger, but also means... that you come from the Muggle World."
"Some Pure-blood Families still fail to understand that the Pure-blood Theory is nothing more than an absurd consolation. Wizards will not become the rulers of this world, either."
"Yet, in order to emphasize the uniqueness of wizards, these families have become exceptionally exclusionary, hating all Muggles and those wizards born among Muggles."
"They have simply forgotten that pure-blood wizards are becoming fewer and fewer. Even in the Magical World, half-bloods and wizards from the Muggle World have already become the majority."
After hearing Dumbledore's words, Vizet could not help but find it absurd. "The Pure-blood Theory... really is rather laughable."
The so-called Pure-blood Theory was very similar to the "racial theories" he had known in his previous life. Taken further, there was even the so-called "one-drop rule."
Fortunately, at Hogwarts, bloodline theory was only popular within Slytherin.
Perhaps that was precisely why they were estranged from the other Houses.
"Yes, a laughable theory. It is also becoming less and less popular in the Magical World..." Dumbledore nodded in agreement. "That is why they made one final, frenzied attempt. Voldemort emerged as a result."
Vizet found it somewhat unbelievable. "Voldemort was... chosen by the Pure-blood Families?"
"The relationship between them is very complicated." Dumbledore gently shook his head. "Voldemort's upbringing was highly unusual, leading him to become a supporter of the Pure-blood Theory."
"When Voldemort rose to power, the Pure-blood Families recognized this. Only then did they truly begin supporting him, hoping to preserve their families' rights and status through him."
"Because their ideals were similar, they hit it off immediately and grew stronger together. Voldemort became 'He-Who-Must-Not-Be-Named,' while members of the Pure-blood Families transformed into 'Death Eaters.'"
"The Magical World