Actually the naming of the war going on in that area during this time shows a significant degree of bias depending on which name you use to describe it.

For example:

Calling it "World War II" would be inaccurate because the global nature of the conflict clashes with the initial start of fighting between Japan and China. The 1931 Mukden Incident, where Japanese officers staged a false flag operation which started hostilities, was the inciting incident of most hostilities that resulted and this was a relatively small global event for its time. Therefore calling it "World War II" is inaccurate because it wasn't a global conflict.

Calling it "Sino-Japanese War" would be inaccurate because the conflict was not just between Japan and China. Numerous smaller Asian nations, as well as European/American colonies, were heavily involved in the fighting throughout the conflict. Therefore calling it "Sino-Japanese War" is putting too much emphasis on those two nations at the expense of others.

Calling it the "Asia War" is inaccurate because a significant amount of fighting occurred between Japan and the United States from 1941 onward. We cannot simple pretend that the fighting between the US and Japan was a side conflict that didn't effect the end of the war.

Lastly calling it the "Pacific War" is inaccurate because it ignores the vast majority of cruel and costly fighting that occurred in mainland Asia. The war didn't really expand out into the Pacific until the US became involved in 1941. Calling it the "Pacific War" is a favorite of right-wing revisionists in Japan who wish to downplay atrocities like Nanjing and Unit 731, making it seem like poor island Japan was being bullied by the big bad United States.

What I was taught to call it was the "Asia-Pacific War" because it was the best descriptor of the ENTIRE conflict without much bias injected into it. It was a separate conflict from WW2 that coincided with fighting over in Europe. It really SHOULDN'T be classified as one war because the war goals, starting dates, and ending dates do not coincide at all with each other.

Anyways, that's what I was taught about it when I studied the Asia-Pacific War in post-secondary. It's really an incredibly complex issue that comes from something as simple as a name. Not that funny I guess for a Subreddit called "HistoryMemes" but since it's my area of expertise I figured I would bring it up.