Your initial criticism said "The pattern with the government is the same from situation to situation". The implications of that are very different if the root problem is that your country doesn't have a functional democracy electing that government. Instead of saying "we need smaller government in America", perhaps you ought to be arguing "we need democracy in America".

That's why you ought to care how much government we have in Australia, and how much government they have in Germany, Denmark, Sweden, etc. The countries of the world form a natural experiment that provides some evidence about the effects of certain policies. This evidence points against the "big government always bad" hypothesis.