Sorry, dude, I stand by what I wrote.
The Nazis fought the commies, too. That didn’t make them good guys.
The KMT was essentially a bottomless pit of corruption. It didn’t matter how much money or weapons the USA threw down that pit, the KMT was not going to be able to defend itself.
Now, in theory the US could have jumped into the war with both feet, as it later did in Vietnam. But I think any reasonable person will agree that would have been an even worse idea.
You have to remember ALL the Chinese politicians came from an authoritarian background back then ~ they had no idea you could govern a country with something other than brutality and terror.
Today even their worst thugs are still better than the nicest democracy advocates back then.
My dad flew the Hump in the CBI and had plenty of KMT corruption stories.