My theory has been that Force Design 2030 is really about the USMC being a tripwire force. Having 500 US troops on Taiwan renders that redundant

 via National Interest

The Purpose of a “Tripwire” Force Is to Get Killed—and Start a War

The roughly 500 US military personnel stationed on Taiwan are there for two reasons: to serve as a tripwire, and to assist in the defense of the island. If China decides to initiate a blockade and an invasion of the island, those US forces will be insufficient to stop the onslaught. The idea, however, is that they will form the nucleus of whatever resistance movement is formed to combat the likely Chinese invasion. What’s more, by having those forces on the island, should they be killed or captured, those 500 men could become the trigger needed to force an otherwise reluctant United States to send more forces to defend or liberate Taiwan from China.

Here 

NOTE!  The purpose of this article is to state that the US should remove ANY troops stationed on Taiwan and furthermore states that the US should avoid a war with China if they seek reunification.

To the issue at hand.

I don't understand why the Marine Corps would seek to push FD2030 in light of what the US Army, US Navy and US Air Force are doing.  

If war were to come the Marine Corps would be a bit player at best and at worst they would simply get in the way.

The Marines need to find a different lane cause "sensing" and "counter recon" with missile shooting just ain't it.