During the colonization era, while activists who fought for the country's independence faced consequences such as imprisonment, torture, or even death, traitors, or those who collaborated with the occupying force to exploit Koreans, lived a comfortable life, becoming rich and elite. Unfortunately, it was those collaborators who grabbed the power of the new government after independence, not the liberation activists. As a result, the traitors didn’t get punished for their betrayal, and the activists continued to live a miserable life.

And it hasn't changed much even now"

How the Real History Behind Netflix’s Gyeongseong Creature Shapes Its Horror

https://time.com/6549173/gyeongseong-creature-real-history-netflix/

"While Gyeongseong Creature is a fictional story, it takes its historical setting seriously. “There was a lot that we paid attention to in trying to recreate what old Seoul was like back in 1945,” director Chung Dong-yoon tells TIME, through a translator, during a conversation with press"

Japan annexed Korea in 1910, occupying the peninsula until 1945, when the Axis powers lost World War II. Gyeongseong Creature is set roughly six months before Japan’s surrender. “Before Japan was defeated, a majority of Koreans lived miserably,” Su-kyoung Hwang, a lecturer in Korean Studies at the University of Sydney, tells TIME.

“Ordinary Koreans were subjected to an aggressive assimilation project under the naisen ittai. They had to worship in Japanese Shinto shrines, recite an oath to pledge their loyalty to the Japanese Emperor, [and] change their names into Japanese. [They] were subjected to extraordinary censorship and loss of freedom.”

When Japan entered World War II in September 1940, Koreans too were “thrown into the wartime chaos and cultural policies,” says Hwang. Young Korean men were forced to enlist in the Japanese military, and tens of thousands Korean girls and women were forced into sexual slavery, becoming “comfort women” for the Japanese military. Others were sent to work in Japanese factories and mines, says Hwang, or starved due to Japan’s wartime rice extraction.

Those who dissented, fighting for Korean independence, faced consequences such as imprisonment, torture, or death if caught.

Of course, when representing complex, real-life history in media, there is always a risk of prioritizing entertainment value over faithfulness to the lived experience of real people. “There is also room to criticize the attitude of overly spectacularizing in history representation,” says Lee. “Even if it plays a role in enhancing the identity of a nation-state, visual media such as dramas and movies are basically a medium that does not allow us to keep an objective distance.

This is why there are critiques to be wary of distorting history by leaning too much towards spectacle in historical content.”

まとめると、ジャパンの皆さんは自分達が昔っからいい人達であり、太平洋戦争もアジアをヨーロッパ列強の植民地から解放する正義の戦いだったと本気で信じてる人々もいるようなんですが。
世界の人々からしてみればインペリアルジャパンはナチスジャーマニーと同じであるか更に酷いものであり、更には自分達の悪行を隠蔽するためにに攫った人々を殺し証拠隠滅した鬼畜のような人々なんですよ、というのはもうコンセンサスなので。
フィクション交えた韓国ドラマで普通の日本人の皆さんが沸き上がれば沸き上がるほど逆説的に証拠隠滅と被害者プレイが浮き上がってしまうので、恥を知る日本人の皆さんは止めた方がいいんじゃないでしょうかね、という。

まあ個人的にはどんどんやれと思う。