According to the new Ministry of Magic, whose general opinion is that only witches and wizards with pure blood are worthy of the gift of magic, Muggle-borns must have stolen their wands and therefore also their ability to perform magic since they are not “real” witches and wizards.
The public goal of the Commission was to force all Muggle-born wizards and witches to register with the Ministry, then undergo interrogation as to how they "stole" their magical power from "real" wizards and witches.
Many older wizarding families placed great emphasis on blood purity and rejected association with Muggles and Muggle-borns, all of whom they considered greatly inferior to themselves.
Why did Voldemort hate Muggles if he was half blood?
Voldemort's obsession with blood purity signifies his aim to rid the wizarding world of Muggle (non-magical) heritage and to conquer both worlds, Muggle and wizarding, to achieve pure-blood dominance.
Within the Ministry itself, Fudge was shown pointing out to the employees that Harry's character was in question due to his connections with beings that the wizarding world considered to be inferior. This not only gave people the wrong impression of Harry, but also put his friends at risk.
Dolores Jane Umbridge was born to a Wizard father and a Muggle mother, and eventually had a younger brother who was a Squib. Under the influence of her father, Dolores grew up despising her mother and brother for their lack of magical abilities.
She persecutes Muggle-born wizards and witches under false accusations of stealing magic, sentencing them to be either kissed by Dementors or sent to Azkaban. While not a Death Eater like Voldemort or Bellatrix , Umbridge stands out as one the most loathsome characters due to how realistic her threat level is.
How was Voldemort in Slytherin if he was half blood?
Yes, Voldemort was only a half blood. His mother was a witch; his father a Muggle. You dont have to be pure blood in order to be a Slytherin. Voldemort, Snape, and I believe possibly Umbridge were all half blood Slytherins.
Snape was born to Eileen Prince, a witch, and Tobias Snape, a Muggle, making him a half-blood (hence the name, "Half-Blood Prince"). This is rare for a Death Eater, as remarked in the last book, though Voldemort himself also had a Muggle father.
The most extreme of the pure-blood supremacists sought to purge the world of those they consider "impure". They often tolerated half-bloods out of necessity (though still disdained them), but Muggle-borns were persecuted and Muggles were viewed as nothing more than animals.
The pure-blood wizards and witches featured in the Harry Potter books are almost all supremacists, while there are some of them who do not advocate ancestral superiority; the Potters, Weasleys, and Longbottoms are old pure-blood families, but no known members of these families are sympathetic to supremacist aims.
The Malfoy family, known for despising Muggles and Muggle-borns, actually gained property and wealth through interactions with Muggle royals. Draco Malfoy, influenced by his prejudiced father, eventually grows out of his family's pure-blood mania, which was ingrained in the Malfoys' ethos.
Non-magic people, commonly known as Muggles in Great Britain, No-Maj(e)s in the United States, Non-Magiques in France among other names (see below), were humans who were born to two non-magical parents and were incapable of performing magic.
The Weasleys are known for not supporting the notion of blood purity. They were considered one the biggest "blood traitor" families within the wizarding world of Great Britain. They willingly associated with Muggles, Muggle-borns, and other "blood traitors".
In turn, Umbridge acts in the open, from a position of power, being the Minister of Magic's right hand. She's not a Death Eater masquerading as a government official — she's just an awful person taking advantage of being in a top position.
Due to the immense fear that Voldemort commanded and the threat he posed against wizarding Britain, Minister Fudge adamantly refused to believe that he had returned and instead deluded himself into believing a more comforting nonsensical scenario, that Dumbledore was trying to usurp his position of Minister for Magic.
An interesting fact of note is that despite the ideals that pure-bloods are inherently more powerful wizards, some of the most powerful or particularly adept wizards and witches in the series are in fact either half-blood (such as Lord Voldemort, Albus Dumbledore, Minerva McGonagall, Severus Snape and Harry Potter) or ...
By Harry Potter and the Deathly Hallows, it's a stretch to call Draco a villain anymore. We just watched — or read — him struggle to reconcile his choices and morals in The Half-Blood Prince. He can no longer justify his actions, and is far more aware of the evil he was born and raised into.
Despite being a pure-blood, he didn't believe that he was superior to other witches, wizards and Muggles. He had a lot going for him and his well-placed morals were even more impressive if you think about the start that he had in life. Sirius came from a family of pure-blood fanatics.
Harry, as heir of Gryffindor, possessed the love of this Muggle-born woman in his very blood and was the perfect champion to stand up against the heir of Slytherin.
Why did Voldemort drink unicorn blood if he has Horcruxes?
Voldemort's desire to beat death and become immortal was also why he and Quirrell ended up slaying innocent unicorns. Drinking the blood of a unicorn would keep someone alive – even if they were an inch from death. However, it is considered an act of evil to kill something so pure.
A Ministry of Magic bureaucrat who was able to indulge in her sadistic tendencies when she was posted to Hogwarts as Defence Against the Dark Arts professor, Dolores Umbridge was famous for her sickly pink wardrobe and her particularly violent taste for corporal punishments.
Was Umbridge a terrible person because of the Horcrux?
Despite this, some feel that her extreme cruelty in Deathly Hallows was given to the influence of Slytherin's Locket as a Horcrux, but J.K. Rowling has affirmed that this isn't the case and that the Locket couldn't worsen Umbridge as she was already such a horrible person.
Personality. Draco Malfoy is the typical spoiled child and bully; he is narcissistic, arrogant, and cowardly. Draco obviously believed himself above everyone else and his parents continuously spoiling their child did not help him.
