You mean in theory or practice? 150yrs ago we fought a war against each other over that subject. You mean in practice. Jefferson, Madison, you name it, wanted decentralized and small doings in the Capitol.
"Keeping us safe" has eroded that with every day/passing year since 1941.
We did, and you remember which side won, right? Obviously decentralized was the desire, but the reality is centralized.
I would argue that apathy and the 2.2 kids, $50K in the bank, and keeping up with the Joneses dream has done more to hurt us then anything else.