[gibolt]

That is not my implication, just as humans are not evolved from gorillas. The likely share a common base.

That may have been 500, 1000, or more years ago and each continuously absorbed neighboring language features from trade or due to local social structures.

[James_Henry]

Korean gets about 60% of its vocabulary from Chinese: https://en.wikipedia.org/wiki/Sino-Korean_vocabulary

This is why many of the words sound Chinese (and a particularly old version of Chinese).

[kazagistar]

Sure, but according to linguistic research still wrong. The ancestor seems so far back you might as well include english in your language family.