Not so much upset about ramen being considered Chinese so much as "Japanese culture is just Chinese culture because of a shared dish"

He's not going to be able to speak to any Japanese person in Chinese, if that's what you believe will happen.

So English is stolen from French? Loanwords are exactly that. As Pugjesus has mentioned, Japanese isn't even from the same language family as Chinese.

The Sino-Japanese vocabulary page has this very important point:

It has been estimated that about 60% of the words contained in modern Japanese dictionaries are kango,[1] and that about 18–20% of words used in common speech are kango.[a] The usage of such kango words increases in formal or literary contexts, and in expressions of abstract or complex ideas.[2]

Sino-Japanese vocabulary

A sprachbund does not a stolen language make.

Ramen - origin

The 'what' isn't about ramen's 'actual' origin, the what is about trying to define a culture as 'stolen' because of shared fucking cuisine.

Second Sino-Japanese War

What the ever-loving fuck does that have to do with

"They were subjugated by the US, before being part of the Axis."

The Japanese kept the traditional forms but that doesn't mean that they share the same meanings or that the Kanji are used in the same contexts to refer to the same things. The videos I shared touch on this. For example, 大丈夫 would confuse any Chinese reader of they had never come across the phrase before.

The pronunciations also evolved in Japanese. Kanji often have multiple on-yomi (Chinese) readings that changed depending on the era and the contemporary culture. And even then, those were interpretations of the Chinese pronunciations which sometimes don't sound anything like Chinese.

I recommend reading the Kanji blog Fuusen no Arare if you study Japanese. It usually separates the on-yomi readings into go-on and kan-on, which are usually lumped together in other sources.

http://huusennarare.cocolog-nifty.com/