The current situation doesn't have anything to do with a wall, border security, immigration or any of that.

The "wall" is just something Trump was told to say on the campaign trail to gin up racist fear and loathing among the red state villagers. Trump has no idea what it means and doesn't care.

Now it's a symbolic political football being used to project an appearence of his power and authority (which he does not have), gin up fear and loathing against the opposition party, and to distract attention away from the various investigations closing in on him and his family.

Congress just needs to do its job, pass a budget to fund the government, and override Trump's veto if necessary. They should stop ceding power to him that he does not have.