Bottom line: border fences work. Those like Perry who remain opposed do so because they do not want them. We can surmise why, and in Perry's case his pro-ILLEGAL alien past is all we need to know.
I used to go to Baja all the time covering the Off-Road races. I know they work. I heard all sorts of bitching from the locals about them.
I live in AZ. On a main route for illegals. We don’t have your fence down south. We have a much higher crossing number than you do. Because you have a fence and we do not.
Simple math. Only deniable by either a liar or someone that refuses to accept the documented numbers. One can deny deny deny all they like. all it does id wreck their cred with people that can read.
I think it is personal. It has to be because we personally are either responsible for supporting or opposing an invasion. If people oppose a proven solution for political reason/personality, that speaks volumes about their personal love of their country and their personal ‘ethics’.