They were indeed invented in 1769. Three hundred years later, there arose a growing suspicion that they do not exist, that they are a fabrication of the paleface patriarchy, contrived conceived solely for the purposes of housework and sexual utility. Over recent years, this suspicion that women do not actually exist has been confirmed to the (quite rabid) satisfaction of many. This generates surprisingly little cognitive dissonance in the "transgender community" since if they wish to remain ideologically au courant, they must affirm their right to be that which does not exist. It seems, if only based on the fact that we are so regularly disparaged, that men DO exist (unless we are a figment of non-existent women's imaginations). If one were to yield to customary logic, this would mean that all human beings are men, except for those who insist on their right to be that which does not exist.
As much of a knuckledragger as it might make me seem, I say men and women are two actual and actually quite different variants of human being, and that, for example, because we have radically different and very powerful hormones continually bathing our brains, we think differently, even (ready the hot tar and wooden fence rail) that we have different aptitudes.
Here's a little snippet from my old Phil 101 lecture notes: A lot of these problems arise out of a confusion of "same" and "equal." Men and women are not the same, but we are equal. Isn't that a lot simpler? Ditto for the races, by the way, just to complete my work of alienating absolutely everyone.