I have a question. I am descended of French, Italian, English, Scottish, and some sort of Germanic country (due to the fact that my brother and sister have blue eyes, and my brother has light hair). As you were saying why you discourage people of non-Germanic descent to follow Asatru or Heathenism, according to that, do I fall into the category of "Germanic"? My interpretation is that the French descended from the Gauls and Franks, who are Germanic, and the English from Angles, Saxons, and Jutes, and the Scottish from Picts and other Celts. In my view, I am Germanic in a sense. However, I would like a second, or third, opinion. I felt that I connected to Asatru, which is why I took it up. I agree that people of different cultures should follow the religion of their ancestors. How do you feel about my situation?
My personal feelings on the matter comes in the form of a couple questions. Does the mythology associated with the Northern European Gods speak to you? Do you feel a sense of connection to the Gods? If the answers are "yes" then Asatru/Heathenry/Odinism are probably for you.
While I would be curious about someone appearing to be obviously NOT of Germanic/Nordic heritage practicing Asatru/Heathenry, who am I to decide that the gods cannot speak to someone? If the gods speak to you, the gods speak to you. I might be curious but cannot condemn.