Quote - Michael being crafted from a female model seems to explain it.  Humans have been around for hundreds of thousands of years we're pretty tough to fool that way =p

Michael was not crafted from the the female model. Both models were made from a common mesh or unimesh, which then was molded into a male or female shape. For Gen3 and Gen 4 figures, that unimesh base was not available for the masses. Genesis was basically the unimesh base and then all figures were made from from that... the base was then available to everyone, which explains the flexibility of the model, but also had its flaws as everything shared the same weightmap. Genesis 2 went back to a male and female model to solve issues with the single weightmap and make it easier to make gender-specific clothing.

As far as whether michael is feminine, that's really a matter of taste that I don't really agree with as far as why male figures aren't more popular. If that were the case then the figures that has been mentioned recently mentioned as manly would be much more popular than Michael, instead of being some of the worst looking, worst bending and worst supported figures available. And those figures are the ones constantly needing support or are borrowing from Michael's much larger closet. And from what I'm seeing the later Michaels are getting more support in this store than the Gen4 version and definitely more than any native Poser character. 

And Michaels before the Genesis versions were made to be more generic and featureless (aka feminine) so they were easier to morph. And generally when you have a generic mesh, making a figure into what you want then becomes as simple as moving a few morph dials, which people really don't do.. and really should. And those that use a external modeller can easily morph Michael's face into unique morphs as well and the marketplace has had a lot more celebrity morphs using michael's face than any other figure.

Also as shante touched on, it is easier to make a male or genderless figure into a female than it is to make a female into the opposite. So I'm thinking the manliness discussion  is probably way off base in why these figures aren't as popular.

There's just simply a smaller pool of people wanting to render male figures.