I've known a fair number of thoughtless racists but I think only one deliberate thoughtful racist. He was a student of mine, a man in his late 30's or early 40's raised in South American by Nazi parents who had fled Germany after the war. He was able to articulate a clear Aryan/Christian/Nazi ideology and defend it pretty respectably.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13