I would say that the distribution of votes and how that maps on to the distribution of seats is a different question from what the population looks like and what the representatives look like. Those things ought to be seen as distinct.
Of course, since I have indicated that I think political parties across the spectrum are part of the representational problem when it comes to representational equity, I can't say that partisan equity is a way of getting at representational equity.
The reason we talk about demographic weight is important. It's because we know that women are going to be ideologically diverse and they're going to have a diverse set of policy preferences and a diverse set of policy-relevant experiences that will cut across a number of partisan preferences and partisan boundaries. The same holds for visible minorities and the same holds for indigenous peoples. As a result, the kinds of questions that need to be asked for the solutions would be what you actually want the representatives to look like.
For women I think this is easier, because we can say women are 50% of the population and therefore ought to be 50% of the representatives, or you can make the argument that this should happen. What we need to avoid, though, is the idea of replicating other forms of inequity. Having 50% of the representatives made up of white, wealthy, educated professional women does not solve the problem.
What we also want to see is diversity within communities. Right now, when you look at visible minorities and indigenous Canadians by demographic weight, you see they're more present in the current House of Commons than women are, but they're disproportionately masculine, older, and all these other sorts of things.