Just build the wall on the other side of the river. See? It is simple ;)
Seriously though, there are myrad ways to deal with the water thing. Even if we build the fence on our side rather than straight down the middle of the water, we can bring that water in. AND still defend/use the land between. That’s where the cameras, crossings ect come in.
A 100 foot steel wall sunk 200 feet down and down the middle would be nice, but no, it won’t happen. But it doesn’t have to. The border patrol now playing hide and seek at best could man crossings and camera centers along the length. Sensors are already out there. More can be planted.
So many ways to skin the cat.
Well, if I were king...
We’d have a series of camps (read: trailers) along the river
each serving a few dozen deer stands 4 or 500 yards apart.
Texans would participate in a lottery to donate a week of vacation time to manning these posts, 3 x 8 hour shifts per each.
The State would provision these posts and provide night vision gear to them what needs it.
An advertising budget would be cleared to promote these operations, mostly on Univision.
Hell of a good time and service to the community.
But I ain’t king, and for good reason.