“Constitution” carries an immediately-understandable connotation, for just about anyone, anywhere in the world. But the definitions vary considerably from society to society. To a Briton, the Constitution is a loose collection of documents, scattered throughout time and geographical scope, outlining the operations of government.
It's not that hard of a concept for alt-president Trump and his dwindling base to understand. America simply doesn't want the wall. If he tries to put one up to contain the will of the people, it will be destroyed by those same people the day after we force him out of office. What a waste of money that will be... That five billion he's asking for could more than save Flint, Michigan, if not put a dent in our homelessness epidemic.