The issue with the OP is that he’s jumping into a huge ocean of arguments between gedolei yisroel that went on for a LONG time, and picking all of the arguments of one of the sides and showing how obvious it is that they are correct.
My favorite line which demonstrates this point:
Rabbi Aryeh Kaplan [ZTL, ZYA] wrote….
This also refutes The Three Oaths.
Rabbi Aryeh Kaplan was a GENIUS, and his words should be listened to.
Aha, so we have all of these interesting arguments, but because “the genius of all time” implies a refutation of the three oaths, this must be the final ruling.