What you call "teaching" is infallible doctine.  Spin it all you want, but it still means obedience to the dictates of the church as respresented by the infallibility of the human pope's interpretation.  Your attempt to concentrate only on the word "infallibility" is just another ploy to deny the dogma required by the church and pope to be obeyed by all.  I have full knowledge of the catholic magisterium and its agent's attempts to obfuscate and spin to deny the actual effects of all of its "teachings" on humanity.