Reading one of the only papers in his self-published "journal" that isn't concerned with showing that immigrants have lower IQs or more criminality than native white populations probably isn't the best way to establish whether he's a white supremacist or not, though it might be evidence for the claim that he's more contrarian crank than obsessive nationalist.

One can of course draw rather more obvious negative inferences about the quality of his research from everything from the paper's laughable description of the sampling methodology to its entire premise that correlation between responses semi-arbitrarily assumed to represent intelligence demonstrates validity of that set of responses as a measure of cognitive ability.