"I am a Wiccan. I mean, I don't have a Wiccan altar and I don't use any sort of Wiccan ritual format. I don't celebrate Wiccan holidays. I don't worship the Wiccan gods. I am fundamentally in disagreement with Wicca. However, I still call myself a Wiccan because this is MY Wicca."
I'm not sure why you would bother, but you do you.