There are 4000 monsters living under 4000 beds and they can only be stopped with a wall.
There is a caravan of new monsters that are trying to get under new beds and the ONLY way to stop these monsters is with a wall. It's a planetary emergency. These monsters can get under any bed at any time and YOUR bed could be next. This is an immediate "crisis." It's an international emergency. Monsters are scary. And, monsters under beds are real.
And, if we don't get a wall to stop these monsters, then we are going to stop funding all other forms of defense against these real monsters. Oh, by the way, the wall can be a fence.