But isn't that through the lens of of self-determinism? China sees Taiwan as a domestic conflict between ROC/PRC, i.e. that Taiwanese are Chinese ( Han). They would never say the same about the U.S. or Russia for example. Not saying China is correct, just that it's pointless to explain their actions or intent based on the wrong model of their values.
>China is culturally an ancient agrarian society focused more on defending farmland
is nonsense just like all the Chinese netizens who keep saying that "We Descendants of Yanhuang have 5000 years of history". Non-sense, PRC happened in 1949, and before that, it's a History of ethnicities from all over the land Conquer, Massacre, Annex and Integrate each other.
EDIT:
> China is not interested in controlling or imposing beliefs
There are 56 ethnic groups in China, they may have different culture even religion, what do you think how China managed to make sure all 55 other then Han stay under control?
"The estimated 1.4 billion Han Chinese people are mostly concentrated in the People's Republic of China (Mainland China), where they make up about 92% of the total population.[2] In the Republic of China (Taiwan), they make up about 97% of the population."
That does not means the 3% just go "Yeah let's become Chinese".
And this is off-topic. The idea is simple: "China is culturally an ancient agrarian society focused more on defending farmland than conquering nation" does not stand. Conquering happens a lot on that land way before PRC is a thing.