So what I'm looking for isn't so much issues that are considered divisive in any Western country like attitudes to immigration, LGBT rights, EU integration etc, as much as divisive issues that are either totally baffling to outsiders and only make sense within the local cultural context (e.g. the gun debate in the US), or issues relating to specific historical events or domestic policy decisions.

嗯,我找寻的答案并不是那些会被任何一个西方国家视为引发分裂的问题,比如对移民、LGBT权利、欧盟一体化等的态度,而是那些对外人来说完全摸不着头脑、只有在当地文化背景下才有意义的分歧性问题(如美国关于枪支的辩论),或者与特定历史事件或国内决策有关的问题。