"only 30% of the men can reproduce" but 100% of the families have kids.  Somebody's got some 'xplaining to do,..lol.  I kind of think about that trippy hippy indigo children stuff, that we'll just keep evolving, or at least that the majority of people do a little better raising children than the generation before.  Also we have better tools and knowledge for every generation, compounding at an astounding rate.  I think the whole crowd of humanity is on the rise.  Even the very sad cases where people have diseases they have a higher quality of life and a greater chance of improvement than ever before.