No, they just create egregors, which have power so long as people pour emotional energy into them. Once that slackens, the egregors lose power, the limelight moves on, and people go, "Them? Yeah, I was into that back in the day."
That's the secret dynamic behind the rise and fall of pop-culture Wicca (as distinct from the British trad Wicca, a very different animal). "The Goddess," the notional deity of pop-culture Wicca, was never more than an egregor, charged by the enthusiasm of teenage fans and a lot of casual sex at Wiccan gatherings. As such things do, it peaked and faded out; that was when a great many pop-culture Wiccans turned, as the foolish have so often turned, to those real but malevolent spiritual entities who are always willing to give temporary power, for a price. The frightful moral collapse of pop-culture Wicca from "an it harm none" to wallowing in cursing and demonolatry followed promptly.
Re: Creation of Gods
That's the secret dynamic behind the rise and fall of pop-culture Wicca (as distinct from the British trad Wicca, a very different animal). "The Goddess," the notional deity of pop-culture Wicca, was never more than an egregor, charged by the enthusiasm of teenage fans and a lot of casual sex at Wiccan gatherings. As such things do, it peaked and faded out; that was when a great many pop-culture Wiccans turned, as the foolish have so often turned, to those real but malevolent spiritual entities who are always willing to give temporary power, for a price. The frightful moral collapse of pop-culture Wicca from "an it harm none" to wallowing in cursing and demonolatry followed promptly.