Capitalism isn't about having as small a state as possible and it never was. The first political divide in the US was between the big state federalists lead by Alexander Hamilton, the intellectual father of american capitalism, and Thomas Jefferson, the guy who said capitalism was a horrible idea. Capitalism has never and will never be about having as small a state as possible.
If you think it is then you really don't understand what capitalism is or more importantly what it accomplishes. Capitalism succeeds when it directs capital towards beneficial ends. Giving rich people a bunch of money isn't just unnecessary but often actively detrimental. When you've got a lot of money it's often easier to crush the competition then compete. If you succeeded in drowning the government in the bathtub then capitalism would
very rapidly perish.
Yeah, but stopping people from using their money as they see fit, and making money within the law as they see fit doesn't put bread in people's pockets.
Just because it's in the law doesn't mean that it's an efficient use of resources. Market failure. Tragedy of the commons. These are 300 year old concepts. And they are concepts that Adam Smith
agreed with. His invisible hand was about situations where market failures did not exist. He explicitly laid out areas where market failures did exist and said that government should intervene then.