I like the idea of calling to check my social security account balance

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Not meaning to be intentionally vague or cryptic here, but for a number of things... guns/ wildlife etc. I can certainly see an argument for how a fed system would work better, in many ways top down systems do work best. China get's some chit done let's just say that.
That said things done at a federal level seem to be wildly unpopular, with the exception of maybe the military

I can't think of anything the fed does with a positive approval rating across the county. I think this has a polarizing effect and in many was is bad for America.
My understanding of America is that it works because CA and WY are different and their allowed to be different.