[ebb tide]

Per Unam Sanctum they have no choice but to obey the dictates of the pope.

No: once again you err. The good sisters were given an either / or choice. And they chose wisely.

[ealgeone]

Roman Catholics hate it when their own documents are used against them.

YOU. HAVE. NO. CHOICE.

[ealgeone]

Furthermore, we declare, we proclaim, we define that it is absolutely necessary for salvation that every human creature be subject to the Roman Pontiff.

http://www.papalencyclicals.net/bon08/b8unam.htm

He's one of YOUR popes.