Isn Wicca Celtic ?
Check on a Wiccan site for a definition of Wicca. Generally, around here, Wicca is considered to be a modern, neo-pagan religion, with myths and practices derived from many sources. Some of those sources are Celtic but it’s usually quite in the minority. Celtic Wiccans try to stick to Celtic sources but still, their core beliefs are handed down from Gerald Gardner and he wasn’t trying to be Celtic. Many Celtic Wiccans are excellent scholars but not all are. A lot of things reputed to be Celtic are not.