It's not that white males have an advantage, it's that others have a disadvantage. The word "privilege" to describe this phenomenon was a terrible branding decision imho - it's hostile and negative, and alienates those most in need of understanding. But it's the word we have, and the phenomenon is real.
In earlier comments I wasn't asserting that being a white male has no advantages in the software industry. I was curious about the author's reasoning as to why attempting to counteract it was a moral imperative for white males.