Before I had to retire, I spent years, both in the military and as a civilian associating and working with major S. Korean businesses and government officials. Never once did I ever see what you are stating on this thread. If what you state is true, then it must have begun since the Obama administration. When people go out of their way to show respect for you, that is one of the greatest rewards one can behold from another. Happened countless times to me, from South Korean people. But, there are a few that want a re-unification with the North, which will never work. Governments and culture are like U.S. and Islam’s Sharia Law. Semper Fi
My personal experience agrees with your observation. Away from military bases the Korean people are extremely nice, helpful and love Americans.
I’ve traveled that country extensively.