It's not true. KBH represented the position of those whose property would be stranded behind the fence, which was mainly farmers and the Texas Farm Bureau was opposed.
When your land is/was stranded behind the fence it is difficult to use and nobody wants to buy it.
If there is a land border in a straight line, stranding is not a problem. But in Texas the border is a meandering river so stranding was big problem. It was the lawsuits that drove up the price of the fence.