Mouse Utopia term is explained below ^
It is possible, perhaps even plausible, that the usual type of explanation for the self-hating, self-destructive insanities of New Left Political Correctness may be insufficient - and that in reality the core, permissive, necessary factor has not been socio-political but instead biological.
If the Mouse Utopia scenario is accepted, then since about 1800 in England (where the industrial revolution began), and starting with the upper classes (who were the first to benefit from lowering child mortality rates, and also the first to reduce fertility) then new and almost always deleterious mutations have been building up generation upon generation.
These mutations are 'random' and their effects fall randomly in the genome - how would they show themselves?
The answer is they would affect behavioural traits that are quantitative fitness measures (such as general intelligence, which has apparently declined rapidly and substantially over the past couple of centuries); and mutations would also have an early and rapid effect on behavioural traits that are the most sensitive and subtle, such as social and sexual adaptations.
In particular, I think the first affected traits would be attitudes.
I think that attitudes are extremely sensitive to even slight pathology, sickness, dysfunction of many types; and would therefore change before actual behaviours changed.
Thus, an early sign of Mouse Utopia would be changes in attitudes, especially social and sexual attitudes - and since mutations are nearly always harmful what we might see was...
Maladaptive changes in social and sexual attitudes.
By maladaptive I mean tending to reduce personal (and group) survival, and reduce reproduction.
Well... it fits with political correctness, like a glove.
Not proof - but the social and sexual domination of modern Leftism seems to be consistent with Mouse Utopia.
Also posted at: http://iqpersonalitygenius.blogspot.co.uk/2015/02/mouse-utopia-as-explanation-for.html
^ The Mouse Utopia hypothesis (deriving from Michael A Woodley) is that
the relaxation of the historically very harsh forces of natural
selection - especially the near abolition of child mortality in recent
decades - has led to a generation-by-generation, objectively-dysgenic
accumulation of deleterious mutations that are incrementally destroying
the adaptiveness of the human species.
has been accelerated by a reversal of the historical pattern of reproductive
success which started from the early and mid 1800s in the West, to
favour the reproductive success of the lowest in intelligence (= highest
in mutation load), and on average of lower social class and status. In other words, differential fertility has favoured those who would, on average, be carrying the heaviest load of deleterious mutations - while those who would be expected to have the least mutations have declined to severely sub-replacement fertility.