Thanks for telling us, I was really worried that you wouldn't agree!
Nope, it will never do that, it will just slow it down by about 95% so that Border Patrol has time to catch most of them and keep up with the mess while sending the signal to millions not to even try coming here illegally now because the trek just got a whole heck of a lot harder.
As far as rebuilding the wall, repair and upkeep, a far smaller and better thing than the cost of what 5 million undocumented, unvetted illegals every two years with no money or skills, no destination, education, healthcare or jobs, many of which bring crime and drugs is costing us already and shall continue to cost us for many years thanks to Joe Biden, America's First Blatantly Treasonous Anti-American Fake Installed Socialist/Globalist President.