That's true, there is a great deal of theological diversity within the Catholic Church, and to an extent that diversity is actually encouraged. But the Church

That's true, there is a great deal of theological diversity within the Catholic Church, and to an extent that diversity is actually encouraged. But the Church also sets bounds on what beliefs can acceptably be called "Catholic" and those bounds are Catholic dogma. (And over the centuries theologians have actually constructed quite a baroque hierarchy of degrees of theological certainty attached to various beliefs. [1]) The actual dogmas are fairly narrow. They include things like the doctrine of transubstantiation, Jesus being both God and man, Mary being conceived without original sin. But a lot of other things aren't dogmatic. For example, it's perfectly acceptable to argue that Roman Catholic priests should be permitted to be married or that Limbo doesn't exist. [1]: https://en.wikipedia.org/wiki/Theological_notes https://en.wikipedia.org/wiki/Theological_notes