The Catholic Church is the bride of Jesus who is the bridegroom. Anything taught by it is from Jesus Himself and what He taught His disciples. Many are also from His apparitions to His saints, just like what happened when he appeared to St. Paul. That's aside from the Church Fathers writings. Historians love reading the writings of those guys, oh and there are some women too.

As mentioned before you're barking at the wrong tree. 😁 If you have issues with the Catholic Church's teachings you talk to the people in charge or complain to God who established it.