JONAH GOLDBERG: The border wall is a MacGuffin. Except in the case of the border wall, it's a case of each sides wanting to deny the other a victory. By way of analogy, Goldberg points out that the border wall fight isn't really a MacGuffin:

To say that the KGB and the CIA [i.e., Democrats and Republicans] engage in similar practices is the equivalent of saying that the man who pushes an old lady into the path of a hurtling bus is not to be distinguished from the man who pushes an old lady out of the path of a hurtling bus on the grounds that, after all, in both cases someone is pushing old ladies around.

I doubt the old lady would agree that the acts are [morally] equivalent either.