If you seriously think the wall can't be built, it's you that doesn't understand engineering.
Here's what an actual engineer has to say...
An Engineer Explains Why Trump's Wall Is So Implausible
The challenge of Trump’s border wall is not technical, but logistical. The leap in complexity between “building a wall” and “building a 2,000-mile-long continuous border wall in the desert” is about equal to the gap between “killing a guy” and “waging a protracted land war.” Trump’s border wall, if built as he has described it, would be one of the largest civil works projects in the history of the country and would face an array of challenges not found when constructing 95-story skyscrapers.
If we assume a border wall length of 1,954 miles (there are 600 or so miles of existing border barrier, but much of this would not qualify for Trump’s wall), then we can make some estimates as to the volume of concrete needed for the project:
Twelve million, six hundred thousand cubic yards. In other words, this wall would contain over three times the amount of concrete used to build the Hoover Dam — a project that, unlike Trump’s wall, has qualitative, verifiable economic benefits.
- Foundation: 6 feet deep, 18 inch radius = 42.4 cubic feet
- Column: 4 square feet area by 30 feet tall = 120 cubic feet
- Wall panels: 25 feet tall by 10 feet long by 8 inches thick = 166.7 cubic feet
- Total concrete per 10-foot segment = 329.1 cubic feet
- 1,954 miles = 10,300,00 feet = 1,030,000 segments (10-feet long each)
- 1,030,000 segments * 329.1 cubic feet per segment = 339,000,000 cubic feet = 12,555,000 cubic yards. (The cubic yard is the standard unit of measure of concrete volume in the United States.)
So your "engineer" doesn't think the wall can be built because it would have 3 times the concrete used to build the Hoover Dam? Who KNEW that the Hoover Dam was the epitome...the be all and end all of engineering feats...never to be exceeded!!!
Can you say ideologue and idiot?