I feel like that headline would be "There are more mothers than fathers," but in any case that statistic doesn't work because there aren't three women for every man in the world; you're just cherry-picking one arbitrary and asymmetrical slice of the population. There are, for all intents and purposes, one woman for every one man; so to get the stats for your scenario, you also have to include two more statistical men, and even if they each have zero children, the average number of kids per man and the average number of kids per woman is going to be the same at 1.33.

But what this article is saying is that there's actually very slightly more adult men in the world than adult women, which means that the burden to bear more children per adult is falling disproportionately on women. Which is kind of like what you're saying, though in a much, much bigger aggregate.

So I guess what I'm saying is you're kind of right!