I'll probably regret this post but...
Ok but even take the important social sciences (so not ones like gender studies and all) like international relations . Wouldn’t it be better if the amount of PHD’s in that were less so the field was truly exclusive so then you would get the smartest people to go into that.
You're right, there are way too many PhD candidates for the number of (non- temp/adjunct) faculty positions available. This problem is by no means limited to social sciences and humanities. I'm not sure if limiting the number of PhDs in international relations would result in better aggregate geopolitics analysis, but I don't pay much attention to geopolitics in general, so maybe I'm not qualified to chime in.
Now imagine a Social Sciences professor doing longitudinal research and finding out the results of the outcomes of children growing up in not just single parent households, but in gay/lesbian households, trans households, etc. Just what would be the response to data which showed the outcomes of children raised in such homes to be less optimal than children raised in two-parent biological families. Would this research be received well, or would the research be suppressed, the researcher systematically discredited? Which would happen in today's environment?
Never majored in a social science, but in all honestly I don't think such a study would be widely discredited. There probably haven't been enough children raised in gay/lesbian households (let alone households with one or more transgender parental figure) for there not to be sample size issues with an
ongoing longitudinal study.