Ok fair enough. I think we need both in a lot of places though, and the number of places where we need both is only going to increase. And there's an obvious synergy between the two.
Where I live we have very very hot summers (along with most of the measures you mention) and winters that rarely get below freezing, but we spend so much more on heating than we do on A/C. Yet there never seems to be discourse about people in cooler climates turning on the heating in winter.