Truman wouldn't let MacArthur win the war, and so we've had this shit sandwich in our laps for the last sixty years.
"Of all the campaigns of my life, 20 major ones to be exact, [Korea was]
the one I felt most sure of was the one I was deprived of waging. I
could have won the war in Korea in a maximum of 10 days.... I would
have dropped between 30 and 50 atomic bombs on his air bases and other
depots strung across the neck of Manchuria.... It was my plan as our
amphibious forces moved south to spread behind us—from the Sea of Japan
to the Yellow Sea—a belt of radioactive cobalt.
It could have been spread from wagons, carts, trucks and planes....
For at least 60 years there could have been no land invasion of
Korea from the north. The enemy could not have marched across that
radiated belt.[0]"
The only nation to ever use nuclear weapons in warfare then normalizing their use would have created a far worse fate for the US than not winning the war in Korea decisively.[0]https://en.wikipedia.org/wiki/President_Truman%27s_relief_of...
Ulysses S Grant was criticized for the heavy losses his armies took and inflicted, but he ended a stalemated war that was killing hundreds of thousands of people a year.
Remember when Bertrand Russell was advocating a pre-emptive nuclear war to ensure it would be the last nuclear war?
Of course, we won't know until NK no longer exists as a belligerent country who is correct.