The article proved it didn't cut down on the rate of crime. Since that's a pretty big reason for a wall, that's pretty relevant.
These "natural boundaries" are BS. There is nothing to prevent people from crossing rivers/mountains/canyons. Not to mention, the government will have to seize private land, even Native American reservations, in order to make this work. For someone that claims to be small government anti-socialism, you sure support are pretty friggin huge government and socialist endeavor. But oh, it's "protection for the people" so it's ok. Like universal healthcare isn't protecting the people...
The type of crime changed from your article and the type that replaced the car smuggling was at a smaller scale and easier to control. Plus the wall in Israel was never intended to stop car smuggling which is a pretty big fact that of course you will gloss over.
How is this a huge government endeavor? Can you please compare the cost to what medicare for alls bill would look like?
No, people can cross more deadly terrain if you want but the deterrent is much stronger and over time there can be additional structures built to prevent it.
The wall will work and that is why many do not want it because on both the socialists and conservatives they have their reasons for illegals to keep flowing into the country.