Here is a quote taken from a blog post talking about why polytheism is vital to paganism:
Right now Goddess-worship, tarot, astrology, reiki, magic, ritual, meditation and all the things we practice are being reclaimed and invigorated. But not by us. By bland New Age philosophers and by Progressive Christians. In the larger picture, they own these things. They are the face of all our practices and theology. Ecological spirituality, shadow work, energetic healing, shamanic journeying and the power of intention are all things they own. For every small-town priestess teaching her handful of students about the power of intention there are millions watching Oprah express the same concepts and principles on television. They are the ones buying the bulk of the incense and tarot decks and crystals and attending workshops. They are the ones buying the books by Deepak Chopra on using Merlin as a guide to self-transformation.
They own it all. Everything. There is nothing you can name that they do not own. Even Voudou is practiced by Catholics using the names of saints instead of orishas. Even those things that have originated within our communities are now owned by them. The Divine Feminine is now a liberal Christian concept. Christian theology and atheism have taken over the Greek philosophers. They own it all.