Wait. What?

Who rejects the teaching of the Popes? Cardinal Müller? The Pope? 

The people who affirm AL certainly learned from the Popes, according to Müller. So doesn't that leave you as the one with the personal interpretation? 

There are "confessional religions" whose members all confess specific tenets, but Judaism and Catholicism are not strictly confessional. Judaism is rooted primarily in family, with a variety of ways of confessing their religion. Catholicism is based on sacraments and fellowship, with tenets and creeds rooted there.