Besides what Liberte/Vichy Army has to say about it, Asatru (or more bluntly Norse Heathenry or Heathenism, sometimes referred to as Odinism), is a pre-Christian European religion that predates Christianity that almost died out completely due to Christian persecution of anything heathen in Europe. Most modern traditions in Christianity were taken from Asatru (Christmas and Easter, for example), and even the days of the week are named after Norse gods. This was a rather secretive and adoptive way to keep the tradition going through an alien religion/culture. Asatru is still practiced today, and growing amongst those who are turning their back to an alien eastern cult and looking to their own ancestry. It is just as legitimate as any of the other largely practiced religions, and should deserve the same respect.
Wicca is just some mishmash of various pagan religions who’s main tenets are: nature. It’s nothing more than some fluffy white magic nonsense practiced by teenagers and hysterical adults. It has no real connection to any pagan religion. If you ever meet a Wiccan, smite them.
Interesting things you didn’t know until recently…