True. But during the Korean War McCarthur wanted to cross the Yalu into China and kick commie butt. Truman wouldn't let him.
The left has always stood against American assertiveness.
Apples and oranges.
How is the issue different?
The Truman administration set policy, not McCarthur.
Besides, it was McCarthur's hubris that allowed him to get caught by suprise by the Chinese entrance into the war.
He ignored intelligence that showed a huge Chinese presence on the border.