In western culture the thing that everyone despises is Nazi Germany for killing six million Jews. This is something that everyone knows. No one tries to whitewash it or revise history to portray Nazi Germany in a positive light. There are Jews living to this day that can recount person stories or stories from their ancestors of these savage times.
However, on the internet, we have people from all over the world from different backgrounds and some of those people have their own Nazi Germany that inflicted similar levels of atrocities. Atrocities where the wounds are actually personal and yet to heal. Remember that the 19th-20th century is the most violent and evil period in human history and that was very recent. In many cases, the perpetrators of these atrocities continue to enjoy success and prosperity while their victims are still reeling.
Here is an example of a terrible atrocity that isn't that well known other than "bad things happened there". In the late 1800s, Belgium's King Leopold went to the Congo and enslaved the people using his armed pirates. He forced the Congolese to work in the most inhumane conditions, physically, economically and mentally, while he raped their lands of its resources.
Ammunition was very expensive to import to the Congo so Leopold thought of a rule. For every bullet that his men fire, they must bring him the severed hand of a human to prove their kill. His fear was that his men would use his bullets to hunt animals for their own profit. His fear was warranted because his men were just as greedy as he was.
To keep Leopold from finding out about the bullets they used on their side ops, his men accepted severed hands from the Congolese workers when they were unable to meet their unrealistic rubber quotas. The workers had no choice but to provide severed hands because the penalties for not meeting those ridiculous rubber quotas was complete and total annihilation. This turned the Congolese people against each other and some raided neighbouring villages to collect severed hands. Human hands became a currency and soldiers were paid bonuses based on how many hands they collected.
Before Leopold showed up with his band of savages, the Congo had 20 million inhabitants. After Leopold's 20 year reign of terror, only 10 million survivors remained.
And even after Leopold's reign, the Belgians weren't done. They imported their eugenics and racial segregation. The divisions that they created/exacerbated led to the Rwandan genocide (800k slaughtered) as well as numerous other conflicts within and around the Congo (e.g. Burundi's impending war). Unfortunately, because these atrocities took place in the heart of the Africa, the Belgians were able to quietly revise history and change Leopold from a devil wearing human skin to a hero that protected the Congolese from Arab slavers and civilised them.
To put this into perspective using something relatable, imagine that statue with Hitler standing there and a Jewish woman thanking him for his heroic deeds. "Thanks for saving us from debt and making our nation a world power!"
The Royal Museum for Central Africa was built in Belgium in 1990. It contains no reference to the atrocities that took place in the Belgian Congo and defined it. This is what happens when revisionists do their thing unimpeded.
Other atrocities that I can think of are Russia's Circassian genocide, Turkey's Greek, Assyrian and Armenian genocides, the Soviet Union's Ukrainian genocide, Croatia's Serbian genocide, Nigeria's Igbo genocide, Pakistan's Bengali genocide, Pol Pot's Cambodian genocide, and the Rwandan genocide. There are many,
many more, unfortunately.
https://en.wikipedia.org/wiki/Genocides_in_history
On Japan, they committed numerous genocides during World War II. The amount of civilians they killed rivals the number of Jews killed by their Nazi allies. Their actions were informed by the savage Emperor Hirohito's scorched earth policy, the "three alls", which is "kill all, burn all, loot all".
https://en.wikipedia.org/wiki/Japanese_war_crimes
Just think of the worst thing that can be done to a person. Whatever you might of just thought of, it's already been done to a human being by Japanese soldiers during WWII. From widespread sexual slavery and genocide to chemical warfare and cannibalism. There were no lines left uncrossed.
The thing that disturbs me the most is their widespread human experimentation. It involved live dissections (without anaesthesia) of people (infants to adults) who were forcefully injected with the most heinous diseases known to man. Organs and limbs were frequently removed for observation and sometimes reattached to other parts of the body. At one point, they stopped injecting people with STDs in favour of forcing STD infected prisoners to have sex with uninfected prisoners (if not, they'd be shot). All throughout, the experimenters and guards raped the prisoners (even if they were mutilated) to forcefully impregnate and, of course, to satisfy their base desires.
The point of this post was to explain why someone might have a strong negative emotional reaction to an article that is not only revising history and downplaying atrocities, but crediting oppressors for the success of their victims. India isn't one of the world's largest economies because of the British.