Calling Cheney or any other gentile is a cover for their antisemitism. The thinking is, the Iraq war was manufactured and sold by Zionists for the benefit of the Jewish state — therefore anyone who supported it is a filthy, Jew-loving neocon. But if you call them on their Nazi-like tendencies, they cry "Cheney's not a Jew!".
It's a little game they picked up from their Nazi masters.