Yes, during the End Time we all, who are alive, will be asked to make the same choice.
These abandoned and suffering people gathered and held up to their heavenly Father, and for all the world to see, the greatest beauty there is on earth.
“Be faithful unto death,and I will give you the crown of life,” is God’s promise in Revelation 2:10.
These Christians know that God always keeps His promises and they have eternal life. Who would lose that for a few more years in this wicked world?
Also, the video of ISIS forcing a Christian to renounce his faith and accept Islam after which they cut off his head anyway shows that cowardice is not rewarded by these evil doers.
“For whosoever will save his life shall lose it: and whosoever will lose his life for my sake shall find it” - Matt 16:25
Christianity took real hold in Korea through the effort of Protestant missionaries, mainly Presbyterian and Methodist. Catholicism had very little to do with it, and represents a very small minority of the Christian population of Korea.
It is notable that Pyongyang was once called the Jerusalem of Asia, because Christianity was the most active religion there. That was before the Russian-backed communists came in. Most Christians were killed, suppressed, or fled to the South. The remaining Christian churches in the North are fakes: showpieces by the regime, fooling only a few gullible foreign visitors ( including, sorry to say, Billy Graham and his family).
Putins Russia remains friendly with North Korea. So much for the Christian presences of the Putin dictatorship!