A Joke I Heard Some Time Ago

A texan man is driving over the Mexican border with his family. The border guard looks out his booth and notices the jam-packed pickup truck with trailer.
Raising an eyebrow he asks the man: "Planning a longer stay, sir?"
"We're emigrating." the man replies.
Visibly surprised the guard asks: "Why's that?"
The man responds: "Thirty years ago homosexuality was despised. Twenty years ago it became tolerated. Ten ago it was widely accepted. This year it became equal. We're leaving before it becomes mandatory."