It is a gigantic oxymoron. Wicca is a cult and if you look up it's beliefs you will see that they greatly differ from those of christanity.
Wiccan's cast spells and do magic, Jesus and God are very clear in the bible about magic and fleeing even the apperance of evil.
Extra Verses
Ezekiel 13:18,20 (NIV) "This is what the Sovereign Lord says: Woe to the women who sew magic charms on all their wrists and make veils of various lengths for their heads in order to ensnare people. Will you ensnare the lives of my people but preserve your own? Therefore this is what the Sovereign Lord says: I am against your magic charms with which you ensnare people like birds and I will tear them from your arms; I will set free the people that you ensnare like birds."
1 Samuel 12:14-15 (NIV) If you fear the Lord and serve and obey him and do not rebel against his commands... good! But if you do not obey the Lord, and if you rebel against his commands, his [God's] hand will be against you, as it was against your fathers.
Nahum 3:4 (NIV) ...all because of the wanton lust of a harlot, alluring, the mistress of sorceries, who enslaved nations by her prostitution and peoples by her witchcraft.
Revelation 18:23 (NIV) The light of a lamp will never shine in you again. The voice of bridegroom and bride will never be heard in you again. Your merchants were the world's great men. By your magic spell all the nations were led astray.
Acts 13:6,8 (NIV) They traveled through the whole island until they came to Paphos. There they met a Jewish sorcerer and false prophet named Bar-jesus... But Elymas the sorcerer (for that is what his name means) opposed them...
2 Kings 9:22 (NIV) When Joram saw Jehu he asked, "Have you come in peace, Jehu?" "How can there be peace," Jehu replied, "as long as all the idolatry and witchcraft of your mother Jezebel abound?"
Numbers 22:7 (NIV) The elders of Moab and Midian left, taking with them the fee for divination. When they came to Balaam, they told him what Balak had said.
More Verses
Isaiah 57:3 (NIV) "But you--come here, you sons of a sorceress, you offspring of adulterers and prostitutes!"
Revelation 9:21 (NIV) Nor did they repent of their murders, their magic arts, their sexual immorality or their thefts.
Galatians 5:20 (NIV) ...idolatry and witchcraft; hatred, discord, jealousy, fits of rage, selfish ambition, dissensions, factions...
So as you can see the Bible is VERY VERY VERY strongly against withcraft. These practices are from the devil, given by the devil and hell ultimatly awaits those that practice it.
I'd say it's completely off the scale, even given such a generous scale.
I'd have to use a geometric projective plane to describe how far off the scale, because on a projective plane in projective plane geometry, infinity is actually a point -- and that's where I'd place it.
On the surface sure it looks like an oxymoron, but there is an explanation:
They're probably in the minority, but some Wiccans (and plenty other denominations) believe in all of the saviors throughout history and across all religions. Apollo, Zoroaster, Buddha, Osiris, Jesus, and many more are believed to be equally valid and sacred; variations on the same story where the name changes with each time and place. Exactly like there is a transcendent, transtemporal, transcultural, teacher, leader, healer, miracle-working, savior archetype. (And who's to say this isn't one hero being reincarnated?) This belief holds that whatever you choose to call the savior doesn't matter because it's basically the same faith in a good higher power versus a bad, twisted power. The rest of the details are superfluous and to focus on them is missing the point, thereby twisting the meaning, thereby bringing about the evil, such as holy war. Wiccans believe in a higher power (divisible into various forms), and Christian Wiccans choose to call it God out of convenience. Perhaps they even look to the Bible for advice sometimes.
Many, if not most Christians have engaged in premarital sex or coveted their neighbor's wife, but nobody says they can't call themselves Christian. Why should one group's selective adherence to biblical instruction be acceptable while the other is ridiculed?
Also I think it's worth noting that Wiccans are aware of how the public views them. Faced with that, it takes a lot of conviction to call oneself a Wiccan. You can bet, they really believe, they really thought things out. Their spirituality is not to be taken so lightly. The spellcasting is hokey hocus-pocus, yeah, but I don't even think Wiccans believe their spells are gonna work, so much as provide a form of ritual spiritual practice for them.
Spirituality takes many forms and as long as they make sense to the believer, they all make sense. After all, religion is the search for answers to inherently unanswerable questions. The Wiccans' guess is as good as the Christians'...
Doesn't seem that strange to me. Why should it be?
Hmm. Maybe I should elaborate:
It doesn't seem out of line with what I know of Wiccans, who tend to be pretty accepting of a variety of gods. It does seem to be pretty out of line with what I know of Catholics, who are pretty inflexible on their own three-in-one god and many of their other rules.
I guess you can see which group I tend to sympathize more with. No offense intended to the other.