There are a lot of gray relations out there, but there’s almost no way you could morph the current US/SK relations to one of hostility; beyond a negligible minority of citizens in either being super vocal for some perceived slights.
https://www.huffpost.com/entry/south-korea-human-rights-inve...
How Trump’s ICE Raid Triggered Nationwide Outrage in South Korea
https://www.newsweek.com/trump-ice-raid-hyundai-outrage-sout...
'The raid "will do lasting damage to America's credibility," John Delury, a senior fellow at the Asia Society think tank, told Bloomberg. "How can a government that treats Koreans this way be relied upon as an 'ironclad' ally in a crisis?"'