Hi Kate,
it is easy to discard 'God' or label God as pointless altogether when one doesn't fully understand what God really is.
If you view God as a literal person, like you or me, literally sitting on a throne in the heavens, then yes, he is very much pointless. Why would an all powerful God have to sit on a throne being catered to by millions and millions of angels?
conviniently, this is a God that you cannot (or not suppose) to see. this is a big clue as to what God really is.
God is a symbol, a representation of something else. What is it suppose to represent? The Bible answers the question. God is justice, power, wisdom, and above all else, love.
God is also perfect, exact, accurate, unfailing, good. 'God' is even given a name, Yahweh or Jehovah, meaning 'I can be ANYTHING I need to be'.
As humans, we are quick to 'personify' and humanize things that are NOT human or people, we do it with our cats and dogs, even unliving things like our car and house. We've done the same with 'God', and its created a ton of confusion.