No. They. Aren't.
Dude just read the articles.
From WAPO regarding the parts of Trump's wall already erected and potential future costs:
Repairs to the structure after vandalism and breaching attempts are another potential liability. The president and other senior officials have acknowledged in recent months that smugglers have sawed through the bollards in some locations, requiring welders and work crews to quickly patch the breaches. One former U.S. official with knowledge of the breaches said repairing the steel bollards costs between $5,000 and $10,000 per panel of fencing, depending on the location and terrain.
Trump told aides last year that he wanted the new barrier painted black, so the metal would absorb more heat and become hot to the touch, discouraging climbers. The administration spent $1 million to paint a one-mile span of fencing in California’s Imperial Valley, using U.S. troops to perform the labor." Keeping the entire structure coated in paint could have added hundreds of millions of dollars to the cost, and Border Patrol officials and the Army Corps of Engineers have tried to talk Trump out of his plan
Experts say a greater long-term risk is erosion damage along the structure’s concrete base, especially in western states where seasonal “monsoon” thunderstorms can dump large amounts of rain in short periods, turning dry creek beds into churning, fast-moving floodwaters that carry debris.
Highway engineers in those states reduce the risk of washouts by installing culverts to allow floodwaters to pass beneath roadways. But the Border Patrol cannot place culverts under the barrier, because smugglers and migrants could use them to crawl through.
Instead, border officials are planning to install hundreds of large storm gates to prevent floods from damaging the structure or toppling it. The gates, which are operated manually, are typically opened at the beginning of the summer monsoon season and remain open until the threat passes in late September.
At locations where the gates are already in place, they require crews with forklifts to open and close them, but calculating the additional costs from those operations is difficult because Trump administration officials have not said how many gates they plan to install or what style they will use.
With or without gates, erosion damage is a risk anywhere water flows in sudden, gushing volumes, said Ed Zarenski, a retired construction estimator and analyst in Massachusetts who worked on large projects including state prisons and corporate offices.
“You are placing something impenetrable across drainage area, so drainage will get dammed up in certain locations, and that will lead to underwash,” Zarenski said.
The weight and size of the barrier’s steel panels require the use of heavy equipment, and transporting that equipment to remote locations is costly, he said: “There will be locations where the foundation is undermined, and that can lead to toppling of the wall. Then you will need to bring in big machinery.”