China won't invade Taiwan because of industrial assets.

China has time. Only when it becomes convinced that there is no hope for peaceful reunification will it dare to invade. And it is not clear whether they are even capable of doing so. The last successful amphibious invasion of similar magnitude was D-Day. Keep that hope alive and you have a more relaxed situation in a couple of generations. China must be limited, but it must not be snubbed. The perception of deepening relations between Taiwan and the US diminishes their hopes. They will wait long time, but they won't allow Taiwan to be taken away by a western power.