On the contrary, it is a significant concern for me and I'm sure I'm not alone in my thoughts.
Fully half of the top ten richest counties in this country are suburbs of DC, a place that has no industry other than politics, administration, and lobbying. I find this to be an absolute travesty that shows just how much incentive and corrupting force there is in the federal government.
Return the land to the states. Keep a small federal territorial enclave for actual federal buildings and functions. Make a lot more of these territorial enclaves all around this vast country so that power is less concentrated in one place. That's one thing the Germans got right, in their federalism.