Being next to China for thousands of years, Korea is left out and survived in the peninsula. Throughout different dynasties of China, there are a lot of attempts trying to conqueror the Koreans, such as the Tang dynasty successfully conquered Goguryeo. In a normal situation, it will be sinicised and integrated into the Chinese people, like the Baiyue. However the culture has never been eliminated and been thriving despite the Chinese culture highly praised in Korea. Why is that the case?
Hey there,
Just to let you know, your question is fine, and we're letting it stand. However, you should be aware that questions framed as 'Why didn't X do Y' relatively often don't get an answer that meets our standards (in our experience as moderators). There are a few reasons for this. Firstly, it often can be difficult to prove the counterfactual: historians know much more about what happened than what might have happened. Secondly, 'why didn't X do Y' questions are sometimes phrased in an ahistorical way. It's worth remembering that people in the past couldn't see into the future, and they generally didn't have all the information we now have about their situations; things that look obvious now didn't necessarily look that way at the time.
If you end up not getting a response after a day or two, consider asking a new question focusing instead on why what happened did happen (rather than why what didn't happen didn't happen) - this kind of question is more likely to get a response in our experience. Hope this helps!