Lesson from Harry Potter Adventures

Reading the whole series of Harry Potter Adventures, I wonder whether anyone noticed that :

1. Professor Trelawney's casual warning for Lavender Brown in their first meeting (Book 3) to watch out red-haired men proved right in the Book 6. At her sixth year, Lavender fall in love with Ronald Weasley who had very red hair and a close friend of Harry Potter. It was a brief affair, ended up in disaster with Ron finally acknowledged his real feeling toward Hermione and left Lavender broken-hearted.


2. Death Eaters who are so proud of their pure-blooded family and dismissed non-magician people and mud-blooded (magician who was born in fully non-magician family) actually worshipped and led by a half-blooded person. Lord Voldemort's mother was a pure-blooded witch, descendant of Salazar Slytherin, one of the famous wizards. But his father was non-magician. (Anyone could see the similarity with the history of Adolf Hitler and NAZI?)