Above are three of your outrages pontifications that you have not corrected.
1) You declared catechisms infallible. They are not.
2) You said Pope Pius X himself wrote the Catechism of Pius X.
3) You said B-16 stated that Pius X wrote it himself.
1. I've already clarified this. Individual teachings in the catechism, if taught universally, are part of the infallible ordinary magisterium.
2. As I've already replied elsewhere, it's irrelevant whether Pope Pius X wrote the whole catechism with his own hand, or whether he had other bishops and cardinals helping him. He still has ownership of the catechism because his name is on it, and because it was published while he was Pope. Just like the papal encyclical on the Dogma of the Assumption was written with the help of other bishops, but the final encyclical was published by Pope Pius XII.
3. What I was referring to when I said B16 Said that Pope Saint Pius X wrote the catechism himself, see the wiki article on the catechism of Pope Saint Pius X. The section on B16 shows a quote from him. Also Cin.org, where the catechism of Pius X is displayed in full, clearly states Pope Saint Pius X brought the catechism. EWTN also attributes it to Saint Pius X. But again, as already mentioned above, it's irrelevant.