I think he failed to clarify what would pivot depending on a point of view. I've seen enough examples of Japanese individuals past age of consent, even close to end of fertility or past it, yet assumed underaged, so the premise of "pedophile culture" seem to be based on inaccurate understanding to me.
No one has brought up a 'pedophile culture' in this discussion up to now, so there is no inaccurate understanding as this premise does not exist in this discussion.
Instead, the discussion was about how (i) there being demand fully justifies delivering whatever pedophile customers desire, with Ygg arguing that (ii) child rape being bad is just an arbitrary societal convention.
Again, I fundamentally and vehemently disagree with both of these premises.