This is a cover up to hide the real motivation: she is a woman and black, and none of you want her involved in a tech company. Disguise this all you want as opposition to the war or Bush or whatever. It is really opposition to her gender and race. This is how you do in silicon valley where blacks and women are considered token employees hire to look good. So make up stuff about her and move her out. Now you have your high-tech lynching hiding behind phony moral outrage.
Got any evidence for this claim? That people are really opposed to her because ~"she's black and a woman" and not because she helped start a war that killed thousands, predicated on lies and misinformation?
Had Dropbox put former Vice President Dick Cheney (male, white) on the board, I suspect the firestorm of controversy would be far, far greater. As for "make up stuff about her," her comments regarding the Iraq war are on the record and are not fabricated.