The Roman Catholic Church was destroyed several times throught history with only its secularism holding it together.
Think about it.
The Roman Church today views the 11th century Roman Catholic Church as holding a heresy in terms of their belief of the Cross....of what Jesus accomplished. That is not a minor change in doctrine.
It occurred several times throughout history and it goes both ways.
If not for the World the Roman Catholic Vhurvh would now exist in several denominations. Instead the World decided the Roman Catholic Church was wrong and the doctrinecwas changed (those not willing to change were excommunicated or murdered).
I don’t know what distortions of history you are filling your head with mate, it just seems like you are running a narrative without evidence here.