Which country current in entire world where the ideas Republicans advocate have been proven to work?

[BekindtoAnimals22]

You are describing Libertarians, not Republicans or even conservatives. There were no federal social programs in this country until the 1930's. No federal income tax until 1913. Prior to that, the money came from tariffs and Welfare provided by each community. Infrastructure provided mostly by private sector sometimes with help from government. Sometimes not. Government did fund the schools and the military. The constitution actually lays out the responsibilities of the federal government. Unfortunately, those responsibilities have been expanded into a federal Leviathan that can now not be supported any longer no matter how high the taxes are.