Right, many of those people are much less likely to be at the receiving end of enslavement and torture and go on the make generalization errors from that position.
are you sure it's a generalization error? you forget that people experiencing enslavement and torture also have some amount of agency, and historically, have periodically organized to inflict terror upon people who seem to be immune to or supported by the pains of the momentary status quo.
it seems silly to believe that outcome to be impossible and erroneous to consider, when there are people out there actively working towards that objective.
Sorry, just really not convinced by this rebuttal. I don't think the enslavers and torturers today are concerned with Spartacus-type events and that makes them not assume their experiences are generalizable.