Equating finding minis for "fat and old people" to finding minis for queer or gender neutral folks is insulting. Fantasy gaming is usually aspirational, and most of us like to imagine our heroic characters are fit and, well, heroic. Which has zero to do with our own or our characters gender orientation. Besides, there are plenty of old wizard minis and if you paint your fighter's hair grey . . .
There is also a lot of assumptions that gender neutral minis would not sell. I'd love to see some actual data on that, as I doubt it's true at all.