I believe it is perfectly reasonable, even necessary, to consider cultural differences as a potential factor in international business relations,
Why exactly is it necessary to consider those cultural differences? We have no substantial evidence that they have played any role in the whole situation. In fact we have no evidence of any factor playing any role. We know nothing. The theory of involvement of cultural differences can be replaced with dozens others. The only reason this one keeps being so pervasive is because it helps to paint certain people as black-and-white villains and then channel all the vitriol you contain towards that image. It's a practical replacement for a witch. Just like with her you can lay all blame on it and burn it. Instant relief.
And just like the poor witch, the accused has no say in their defence. There were some Korean players that tried to explain this whole thing is ridiculous, but they were shouted down.
and it is entirely possible to do so without being offensive.
This I agree with. Unfortunately, to do so, you need to thread carefully and be wary as to avoid any prejudice. People who engage in arguing that kibun was possibly the key factor in game closure, even though they have no way of proving that, with almost no exception lack these qualities. They prance into threads and start shouting how these Koreans, being Korean, did this clearly Korean thing to us. Because they are Koreans, duh! You say that you have no tolerance for ignorance. Doesn't
that offend you then?
To dismiss this differences as a factor altogether, especially to the point that they cannot even be discussed without accusations of "racism" is willful ignorance, for which I have no tolerance.
And how do you call insistence on arguing some theory that can't be neither proven, nor disproven? Give us proof that your cultural based claims are based on facts and no one will say a word. But start with that nonsense about Asians closing the game out of spite, because they must hate our guts and you'll get a reaction.