no mesorah:
The Satmar Rav decisively proved, from the many halachic authorities he quoted, going back centuries and more, that the oaths are absolutely binding. Period.
The premise of your “question” to the “ardent anti-Zionists” is simply not there. The oaths were very much in halachic responsa going all the way back, as the Satmar Rav notes and as lhbc”c Rabbi Shapiro writes in his sefer. Open those up and see!
Even the “Religious Zionists” struggle to come up with how their idol/State could be exempt from the oaths. According to your “logic” they need not bother. Yet they do, because they know very well that the oaths have always been in force, as the Satmar Rav quoted numerous halachic authorities who openly hold this, as mentioned, and as even Chovivei Torah and, lihavdil, as even some “Religious Zionists” held openly.
Maybe it would be wise to first read the Satmar Rav’s sefarim on the topic and/or lhbc”c Rabbi Shapiro’s sefer. Then, you would be able to theorize based on the reality of the Torah and the mesorah going all the way back, not on your imagination of what the Torah and mesorah say or don’t say.