Even the greatest iconoclastic religions worship something.
They do not have an image of God but they do have a symbol. If they don’t have a symbol, they have a book. If they don’t have a book, they have a teacher. If they don’t have a teacher, well, they have some letters, which are considered holy. Or if they don’t have any of these, they at least have a direction to turn to, which again is a symbol. Show me one (religion), where there is none of these.