Kevin Roberts, the chair of advertising company Saatchi & Saatchi, probably still doesn’t know what hit him. He announced his resignation today after being put — very publicly — on a leave of absence for being gender blind. Like most executives I work with, he probably was proud of his blindness. We’ve raised a generation of men — and many women — who pride themselves on ignoring gender totally. In their minds, like Roberts’s, “the fucking debate is all over.”