A religious movement invented circa 1954 by Gerald Gardner who fraudulently claimed it was an ancient witch cult which honours nature, it is in fact based on Freemasonry
Wicca is now a worldwide movement, its rituals are non-descript, often made up on the spot and frequently bastardising religions and/or Gods from other cultures and/or parts of history.
Wicca also possesses a heavy left wing
uncurrent, the adherents of the religion tend to be marxist
or at least socialist
even if they are unaware of what left wing political ideals actually are.