If you know the tangible differences between disenfrachised and enfrachised groups on a given issue, then you know that a demographics approach to interpersonal problem solving is hardly arbitrary, meaningless, or impractical

It becomes much more arbitrary, meaningless and impractical in a situation where neither party knows something about the other, like OP's post. It's not harder to be ignored (in any way) as a middle aged woman than it is for everyone else. We're all humans (first) sitting in a comfortably labeled box (only second).

If you mean that middle aged women get less attention because they're no longer physically attractive, then that's a very broad (and equally impractical) generalisation, since there are other "ugly" people besides middle aged women.

If you mean middle aged women are ignored due to not having been as active in the work force as a group or being of lower rank in the corporate hierarchy on average, then it's impractical, too, since other groups fall in that category (any kind of woman, those with little or no education, immigrants), making middle aged women undeserving of any more special consideration than those other groups.

If you mean middle aged women are ignored due to not being respected, there are plenty of other groups that fall into that category as well: Muslims, kids, adolescents, the elderly, people doing menial work, etc. Again middle aged women are not an exception.

If you mean middle aged women are more emotionally fragile than others due to menopause, then there are other groups with the same burden as well: middle aged men for one, victims of violent crimes, refugees from dictatorships, etc. No exception for middle aged women.

I fail to see how you can draw the conclusion that they need special consideration based on nothing but the people in question being middle aged women. It's a broad generalisation based on just gender and age. That tells you nothing much at all. If you are comfortable drawing such a conclusion with the information given, you are biased, no denying it.

If you disagree, please enlighten me on what makes middle aged women such a special and unique case.