[Olog-hai]

So he did not come back and win?

You’d rather a glorious last stand and lose versus a tactical retreat to win later? No strategy; just blunder in and fight until exhausted?

As for the supposed “insubordination”, that’s garbage.

… (T)here are five essentials for victory:

1. He will win who knows when to fight and when not to fight.
2. He will win who knows how to handle both superior and inferior forces.
3. He will win whose army is animated by the same spirit throughout all its ranks.
4. He will win who, prepared himself, waits to take the enemy unprepared.
5. He will win who has military capacity and is not interfered with by the sovereign. …

— The Art of War, III:17

There are roads which must not be followed, armies which must be not attacked, towns which must be besieged, positions which must not be contested, (and) commands of the sovereign which must not be obeyed. …

— IBID., VIII:3

Obviously MacArthur wanted to win; however, Truman evidently wanted to keep the communist Second World going with all its evil, deadly depredations.

Opus?

[spel_grammer_an_punct_polise]

“Opus?”

Not my opus, for sure! ;-)

“No strategy; just blunder in and fight until exhausted?”

That is exactly what he did when he haughtily and arrogantly ventured into North Korea and got his butt kicked.

Your Opus? ROFL

[spel_grammer_an_punct_polise]

“As for the supposed “insubordination”, that’s garbage.”

That is known fact, not garbage. He got fired for insubordination by then-president Truman.