Operation Causeway - why not invade Taiwan?

Operation Causeway was Nimitz's 1944 proposal to invade Taiwan. Doing so would have bypassed the Philippines, which was the route MacArthur had favored taking. Operation Causeway would have consisted of 400,000 U.S. soldiers and marines landing at the southwest of the island and fighting their way north towards Taipei. Considering how much Taiwan contributed to the Japanese war effort, with all it's ports and airfields, food supply, and volunteers, why was MacArthur's plan chosen instead of Nimitz's. Was it only because of MacArthur's promise to return and liberate the Philippines back in 1942?

 

There's already a thread on this subject, and I think we concluded on it that it would be more trouble than it was worth. In short, we would have needed the Philippines as a base for it, and that would have made Nimitz look downright silly, since he argued for taking Formosa and bypassing the Philippines.

Also, MacArthur argued to Roosevelt that 1) bypassing the Philippines would have made Japanese propaganda about abandoning the Filipino people look true, and 2) taking the Philippines would cut Japan off from the oil of the Dutch East Indies more effectively.

 

...I would say logistics had a lot to do with it

 

In a way a mystery to me,.too.Either China or the US??

 

Here's the thread I mentioned.
http://www.ww2f.com/threads/invasion-of-taiwan-taipei.74954/#post-857346