Most of history's problems were caused by people who cared.
The district should be redrawn so that the residential areas are part of Maryland and the population is zero. Then it can be a nonpolitical capital again, as was intended.
It's a wise, and intriguing, option...although I don't really see why you don't just give all of it back to Maryland (lots of government offices outside DC already...the Pentagon is in Virginia)but
I don't believe that's the way it was intended. Why'd they add a previously existing city (Alexandria) when they created DC if they intended it to be unpopulated? Doesn't make sense.