Typical agrument against dualism ockham's razor

Often materialist's use ockham's razor against dualism by saying that dualism provokes multiple entities no it doesn't it says that there is more to reality that there is a non physical reality too. It's funny how materialist's and use it but don't use it at all when comforting there own way around the fine tuned universe agrument. They claim that there are billions and billions of parellel universes.