One issue is that a lot of the land on which the fence would be built is private property—and perhaps not all owners of private property along the border are willing to have a part of their property “donated” for that purpose.
The Texas border with Mexico is the MIDDLE of the Rio Grande River! It’s not on private land owned by Texas ranchers and farmers.
How would anyone build a FENCE along 1250 miles of border down the middle of a river in a LOT of rugged terrain, from El Paso down to Brownsville?
Let’s try to unravel this point you made. Some of it is correct, some incorrect.
Yes, the border between Texas and Mexico is the Rio Grande River.
No, a fence is not built along the official border line...
It couldn’t be, number one, and people do get that.
The common border is common to both countries...the line has Texas and Mexico interests up and down its entire length. Neither country would have the right to build a fence along the exact common border with the other.
This is true even if the line is not down the middle of a river.
A border fence is a barrier you put up for a defensive reason. Where you place it is the closest to the border you can but as far away as needed to build it where it makes sense for your purpose.
Israel.
The fence for a certain number of miles in the San Diego area.
Other examples, I’m sure.