I’m no supporter of Trump. But with the new Congress, if the Democrats let Trump build the wall, then Republicans have to return a favor. That’s true democracy.
Why is building a wall somewhat good? Somewhat... If the contractors set up several positions along the construction site and slowly built the wall, the budget could be spread across several years. Currently, I’m predicting a rapid construction. With a slow construction, border agents could patrol along non-construction zones. For exiting construction zone premise, people need ID. How about that? Gets Trump’s idea done, but on a higher intellectual level.