I am aware. And there are still contexts when all roles are played by male actors (and perhaps the opposite), but that is not really the point here. And we are

I am aware. And there are still contexts when all roles are played by male actors (and perhaps the opposite), but that is not really the point here. And we are talking about human language here, it's something that has evolved over centuries, to a large extent spontaneously. That's why we make some distinctions and not others that may seem equally important. If we were talking about a programming language your argument be more relevant, although I would still argue that sex is a much more dramatic difference than race.