Face it, in the long run Taiwan is going to have to "reunite" with China. The interests of these two nations are too entwined. American foreign policy needs to be based around the paradigm of power politics and the strength of nations, and not whether they're democracies are not. It's not in our interest to defend Taiwan in a war.
You stated "It's not in our interest to defend Taiwan in a war."
All that may be true. However, I think that giving up Taiwan will come at a price for the PRC. There may be high level negotiations between the US and China for China to satisfactorily handle the North Korea problem. If that is accomplished, there just may be a trade off.
Face it, in the long run Erie is going to have to "reunite" with the UK. The interests of these two nations are too entwined.
Face it, in the long run Mexico is going to have to "reunite" with the United States.