Look to the present Joe. The exact same dynamic was operating in 1861. Liberals just needed a proxy excuse to invade people so that Liberals could remain in power.
How do you suppose a Washington DC "state" is gonna vote Joe?
Is it about civil rights for Washington DC residents, or is it about adding to the power coalition of Liberals controlling the government?
Tell me Joe, is it morality, or is it power?
Naw... so far as I know, the Left doesn't even call themselves "liberals" these days, and there's nothing traditionally liberal about them.
What they are, and always have been is Democrats, the same people who ruled over Washington, DC, before 1861 and then rebelled against it when voted out of power.
Today, whenever they can rule oppressively, they do, whenever voted out of power they "resist" and rebel endlessly, implying we'll only ever see peace again when they are once-again in full authority over us.
It's what Democrats have always been, and will always be, if they're allowed to.