The problem with this point is that it remains irrelevant to the central question. I have no intention arguing it because of said irrelevance. Air is different from cast iron cook ware, but that doesn't mean air is traumatic.
Establish that OP question is necessarily traumatic outside of conditioning. Establishing that it's different from something else is insufficient/irrelevant.
I agree in the sense that this discussion is already derail from the OP question and this is a RD thread hence it will be more proper for us to stop discussing this. This discussion start from I try to refute that berzerker comparison is invalid because it is not an equal comparison, so better just cut it here.
From one of the links there:
So conditioning has a pretty significant impact, after all.
If the site you linked is credible, you would expect since the 1995 times that traumatic experiences from viewing this stuff on the internet would *skyrocket*, with observable differences in psychology and behaviors. The claim you quote is that children self-abuse on a large scale (IE any time they access the internet and view pornography). That's a strong claim and it has testable consequences; where's the disparate manifestations of harm? In order to create a plausible model for what you've quoted, we have to let that model anticipate mass harm to children throughout the world. We don't have much observed evidence of that happening.
And despite my request for otherwise, you're still sticking to biased sampling; IE the same culturally conditioned population. We're also still lacking specific data for OP's case question, though there might not be competently tracked data on the psychological consequences of witnessing parents having sex in different cultures.
I understand in some part of the discussion you try to be objective in this matter I really value that just to let you know. You try not to undermine the traumatic affect of parent having sex with children, however you try balance your opinion by stating that it is not the act that causing the trauma but it is the culture influence on how we perceive the act that actually cause the trauma. Am I understand you correctly?
However culture is an intrinsic aspect that already build up in our existent, it mean that it is quite impossible to make any research on human psychology that is absent from cultural influence, because there is no human that don't have any cultural background influencing them, except tarzan maybe
Having said that I believe that doesn't mean culture is an agent that shape this perspective, but as I stated before culture already part of ourselves since the very very early of our development, and it is already there and we can always suspect culture conspiracy on an unlimited numbers of issue. Also there is no laboratory that able to control cultural factor from entering, we may need to raise a child in a secluded and control environment that is sterile from any form of cultural existent, and see how the child respond on the stimuli in that "free culture" environment. A research that is not only expensive, but also impossible to be done today, except by a government like North Korea but I doubt they have any interest doing that, considering there is no practical reason to do that.
Hence the only wisest way to continue this discussion without trapping ourselves in the circular endless argument is either by neglecting culture as the independent variable or trying to search a research that is done from various other culture that prove that the effect is actually cross culture in nature.
It is impossible as far as I know, as I taking a class years ago in psychology experiment, to make a universal research regarding some issue, the sample population will be insanely huge and need to be taken from variety of country and class social with adequate quantity of sample population, it is a dream research that sound nice but too utopian to be done.