Do they really believe that burning sage and burying objects really affect people's lives or the outcome of events?
I think that Wiccans are silly, but mostly harmless. I expect that they actually believe their own nonsense as much (or as little) as any other religious adherent does.
They get props for fun clothes and jewelry, and lose some points for the smell of them.
My view is just across the room
actually my wife is a druid, but near enough for the joke.