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He’s referring to the computer, phone, tablet, telecom system, computer servers, communication protocols, long-range cables, radios, web software, etc that she used to pen & publish her screed. Take away “white men” (a misguided euphemism for “Puritan Work Ethic”) and none of that would have existed, or would continue to function for any significant time. Technology is a product of capitalism & a strong contractural work ethic, not of progressivism & racism & sexism she adheres to.