I've been white all my life, around white people all my life, some of which have rebel flag gear and don't tread on me flags, and I've never once heard even the most racist people I've ever met indicate they fantasize over seeing black people as slaves again. I mean, you think Jethro from the Appalachians watched Roots or 12 Years A Slave?
I don't know where this sudden talking point of white people fantasize about having slaves again or some shit. Even racists don't think like that.