That is simply not true, just as your same claim about the FTAA is not true now. One problem that people who believe in conspiracy theories have (and it's central to their pathology) is that they see motivations that simply aren't there, or never existed.
So what you were seeing is (this is a rough diagram of how the faulty reasoning occurs):
past claim: There is a conspiracy to erase the border by building the road!
past counterclaim: The road already exists, and a plan to expand the road exists, but it is not a conspiracy.
resulting claim: Someone said there (either) is no road or no plan to expand it!
I read it. It doesn’t merit an extended response. Thanks.
I've seen that claim before. I never saw anyone claim the road was a conspiracy theory. I guess he won't be providing a link where that claim was made. LOL!
I've denied that the plan to build a road is proof that our border will be erased. Maybe the problem these guys have is one of reading comprehension? When you can't understand an article, it's easier to shout Conspiracy!