The Koreans vs Chinese are very different when it comes to dealing with business. Why are all the knockoffs Chinese made? Have you ever watched Silicon Valley?
They already have an establishment in the low/mid-tier range globally. For example, see this article:
https://www.firstpost.com/tech/news...grabs-29-market-share-in-q2-2018-4810831.html.
From a company perspective, there really is no reason for them to abandon the U.S., and they have more than enough manpower (17% of SK's GDP) to compete against Apple if the company manages their employees correctly. Samsung has considerably more engineers than Apple which explains the breadth of products they tap into and how much of a global market share they have across the board.
Right now as a consumer, I still perceive them as a mid-tier company trying to be a high end on the consumer side. They still make really good computer components, but I absolutely loathe their TVs.