[mrsmel]

Is that anything like an inconvenient truth, only in this case, it’s actually true? Because I believe it’s true, however inconvenient it may be to someone. Just like regression to the mean-inconvenient but true.

[Paladin2]

It could be that there are different "figures of merit" for evaluating Nurture. (some of which would be more explanatory - tough perhaps also Inconvenient, in a PC sense)

The alternative explanation would definitely seem to be an "Inconvenient" (tragic and politically incorrect) Truth.