Quote - ...and there are perhaps three of those, tops, used by most users without resorting to a preset supplied by someone else. As I've already said.

But haven't proven. 

For someone who demands proof from everyone else, you don't seem to be bringing much more than your opinion.

I don't get your whole Genesis obsession.  I don't remember anybody asking for "1 mesh to rule them all".  Could you point to a thread pre-DS4 where ANYONE was asking for this?  I don't remember it, but I have slept since the release of DS4.
Genesis is a solution in search of a problem. 

If it was a solution, the stores would be overrun with Genesis products - look around, there isn't that much outside of the DAZ store - And most of those have a Gen 4 character bundled with them.

Clothing is no longer an issue for characters.  Just because you don't want to use what is either built into Poser or an external product doesn't mean there is a problem - it just means that you are desperately looking for a ray of darkness in an otherwise sunny day.

As far as Gen4 (and Gen3 et al)....

For the most part, characters cost money. 

V3 ran $80 back in the day (40 for the base figure, 20 for the body morphs 20 for the head morphs - then add the body fixes on top of that.).  And M3 was just as expensive, then there was those kids....

$200 for Genesis or $200 for the Gen 4 figures - 6 of 1 or half a dozen of the other.

Play chicken little all you want.  I got 30 or so figures I need to weight-map.....