Louis XIV had once said, "I am the state."
This meant that the king's pardons had to be carried out according to the law. Before the French Revolution, laws concerning "magic and witchcraft" remained in force, but restricted by Louis XIV's 1682 edict, witch trials were prohibited and suppressed within France. Before Britain truly rose to power, everything the king of France did was something the kings of neighboring countries sought to imitate, even keeping mistresses. Thus, after France, Russia and Prussia also suppressed witch trials domestically without changing their legislation. It was not until the legislation of 1791 that imaginary crimes were abolished.
Catholicism's theories of gods and demons always struck a nerve with supporters of the Enlightenment. Yet public debate over abolishing witchcraft did not mean every problem had been resolved. At least a small number of people still firmly believed in witchcraft and felt it was absolutely necessary to punish witches.
Not every witch was as harmless as Ariana, who grew flowers in her garden. There were also "witches" who sacrificed infants and children. Some people could not accept the fact that they had been born without magical ability. To gain power, they did not care even if they had to sell their souls to the Devil.
Those three Muggle children might have attacked Ariana because they had mistaken her for that sort of "witch." Albus had every reason to hate Muggles. When he enrolled, everyone thought so, yet he became the "white wizard" who defeated two generations of Dark Lords.
"Handling Muggle affairs" was a problem every wizard leader had to face. Voldemort intended to wipe them all out, while the white wizard maintained friendly relations. Severus Snape was the "disciple" of both men. If he did not die, he would create many uncertain factors.
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