Correlation is not causation. There are racists with PhDs and non-racists who never finished high school. There are racist CEOs and non-racists who serve fries. Racist thinking can be superficial and attract dullards (like is the case with rednecks) or it can be complicated and attracted very smart people (like is the case with the Nazi generals). This is a list of the IQs of Nazi generals measured before Nuremberg. As you can see most of the Nazi generals had above average intelligence:
"Q's of Nazi leaders tried for war crimes from a letter to me by Grady Towers dated April 13, 199
Used with permission from the author
In 1945, an army psychologist named G.M. Gilbert, was allowed to examine the Nazi leaders who were tried at Nuremberg for war crimes. Among other tests, a German version of the Wechsler-Bellevue was administered. Here are the results:
1 Hjalmar Schacht 143
2 Arthur Seyss-Inquart 141
3 Hermann Goering 138
4 Karl Doenitz 138
5 Franz von Papen 134
6 Eric Raeder 134
7 Dr. Hans Frank 130
8 Hans Fritsche 130
9 Baldur von Schirach 130
10 Joachim von Ribbentrop 129
11 Wilhelm Keitel 129
12 Albert Speer 128
13 Alfred Jodl 127
14 Alfred Rosenberg 127
15 Constantin von Neurath 125
16 Walther Funk 124
17 Wilhelm Frick 124
18 Rudolf Hess 120
19 Fritz Sauckel 118
20 Ernst Kaltenbrunner 113
21 Julius Streicher 106
You may find these data in The Nuremberg Mind: The Psychology of the Nazi Leaders by Florence R. Miale and Michael Selzer, as well as in The Reich Marshal: A Biography of Hermann Goering by Leonard Mosley."
Notice that there is a clear correlation of IQ with social status. Notice, as I've pointed out before, that success in the practical socio-econimc sense usually goes to those with IQs between 125 and 150. And finally, notice that there are no towering IQs in the 150 plus range, as one would expect from theoreticians. None of these men were original thinkers."