No case, eh?
First, you wrongly assume that these are draft-dodgers when many US citizens have been willing to volunteer for some forms of ROC "alternative service" like in an English-speaking militia. Under the ROC conscription laws, there are gross violations of the Laws of War for Taiwan cession including illegal declarations of "oaths of allegiance" in contravention of customary laws of war and peace treaties.
Secondly, you have obviously not read the 1946 US-ROC Treaty of Commerce, Friendship, and Navigation for the applicable purposes of its conscription clauses, nor do you understand how the TRA "treaty clause" upholds such old treaties including the San Francisco Peace Treaty.
Thirdly, the ROC is not an independent country under the terms of SFPT cession and the Laws of War. The key issue is of administrative authority and the supreme authority of the USA. In full legal accordance with the executive agreement of the Shanghai Communiques, the final treaty status of SFPT cession is between the ROC and PRC in accordance with Para. 354, Chapter 6 "Laws of Occupation", and under these same Int'l Laws of War is a federal court doctrine of Civis Romanus Sum for the official establishment of US Military Commissions to protect these US citizens. I suggest you see the movie "Judgement in Berlin" before you think in terms of traditional human rights cases or wade into something which law school does not teach, but the military does. US citizens are protected from ROC abuses under the Laws of War, but they are not so necessarily exempted from military service under the 1946 Treaty. The absence of bonafided exemptions for conscientious objectors is regretable and this is indicative of the very low standards of the ROC military in comparison with NATO.
Gonzalez v. Williams <blockquote><font size="1" face="Verdana, Arial, Helvetica, Geneva">quote
'The civil rights and political status of the native inhabitants of the territories hereby ceded to the United States shall be determined by the Congress.'
The "undefined" civil rights of peace treaties is found in the customary law for cessions like Cuba as this case demonstrates for the "human rights" of TRA. Customary law is deeply embedded into the TRA as an integral legal part of the USC Title 22 "Foreign Discourse" as the customary laws of all ratified peace treaties are the supreme law of the land.