Likewise, if you resign, it's not your IT department's job to make sure your former teammates don't find out about your "My Little Pony" fan club. If you want to keep that secret from your work, don't use work hardware to do it.
Scientific discussion of racial differences is not the same as racism. It's amazing how afraid some people are of frank discussion about race. They want to shut it down as soon as it begins, typically by denying the question ("there's no such thing as race!!") or personal attacks like you're doing ("you're racist for even suggesting that!!!").
And writing a book to be published to the masses on your "scientific" theory rather than submitting it for peer review and publishing it via the normal process isn't a scientific discussion. To me, that raises a red flag as big as all of the "cold fusion" and other physics discoveries that call press conferences rather than publishing papers and letting other scientists analyze their results before the press sees it.