Admittedly this gets complicated with DC because of the federal overlay of its governance.
"Federal Overlay"?
Article I, Section 8:
To exercise exclusive Legislation in all Cases whatsoever, over such District (not exceeding ten Miles square) as may, by Cession of particular States, and the Acceptance of Congress, become the Seat of the Government of the United States, and to exercise like Authority over all Places purchased by the Consent of the Legislature of the State in which the Same shall be, for the Erection of Forts, Magazines, Arsenals, dock-Yards and other needful Buildings;-And
To make all Laws which shall be necessary and proper for carrying into Execution the foregoing Powers, and all other Powers vested by this Constitution in the Government of the United States, or in any Department or Officer thereof.
The District IS literally federal. "Home Rule" has proven ineffective (twice), and any talk of statehood would literally require a Constitutional Amendment.
If the Executive is charged with seeing that federal laws be "faithfully executed", and the "home rule" people are not effectively enforcing the laws, whose job is it to fix it? There are a lot of places where "federalizing" law enforcement is problematic, but DC is not one of them. In fact, DC is the one place where it should not be problematic. I'd even be on board with eliminating "Home Rule" for the second time.
Is anyone here aware the Governor of NY mobilized the National Guard to work as prison guards when the current guards went on strike? What was really weird about that (actually, a lot of things are weird about that, including the fact that the strike is over, but they are still there, because they cannot hire actual guards quickly enough) is that according to NY law, you MUST be over 21 to be hired as a guard, but of course the requirement to join the NY Army is only 18. I'm not pointing this out as a theme in "whataboutism", rather, I'm pointing out that people can be very selective in what they find to be "national news" and open to national debate. However much you hate the main stream media, you do not hate them enough.
Oh, and about that dock yard thing. Came across this today:
https://www.foxnews.com/us/radical-...lice-leader-says-7-attacks-led-trump-takeover
I don't normally rely on Fox News, but examples 4, 5, and 6 have a common theme. We can argue all day long whether the crime rate is rising or falling, or whether one city is better or worse than another. But when you get to the point that the violence is starting to impact the ability to govern, AND you have the "authority over all places purchased by the Consent of the Legislature... for carrying into Execution the foregoing Powers...", well I'm not really sure what counterargument there can be for this, except maybe to stamp your foot and tell the mayor to "try harder". Expecting that to work would seem to be the triumph of hope over experience.