Well, I think America is still too naive as to how Paul arrives at his conclusions. Most people don't know about all the mumped up crap we've done in the past. From coups, to Iran-Contra (state sponsored terrorism), economic and militaristic wars. Americans need to admit that we may have been wrong about a few things, then they can see Paul is correct.
But most people would rather not admit to being wrong. They would rather keep putting war mongering fascists in the white house every 4 years.