The Atheist Tea Party

You called the multiverse theory the 'atheistic tea party'. I thought about it and I don't think this is a correct statement – the multiverse assumes only one entity, and it is the mechanism that creates the universes. The universes are just a result of the existence of the mechanism. Why is this similar: There is a discussion in cosmology about the size of the universe, according to the Rabbi we should take the minimum estimate, because it assumes fewer entities (stars, etc.). This is not true – the discussion is about the size of the universe, and everything else is just a derivative of that. And so with everything – we will always take the theory that yields us the least extraordinary conclusions.
What do you think?