Pope Benedict XVI
From ZENIT via Sources Chrétiennes
Benedict XVI, Vatican II and modernity

Many believe that "Gaudium et Spes" was the key document that shaped the life of the Church in the years immediately following the Second Vatican Council. However, according to theologian Tracey Rowland, 40 years of post-conciliar history and reflection on the 1965 pastoral constitution have led many to conclude that the document had an inadequate understanding of culture, particularly that of the culture of liberal modernity. The result, Rowland reckons, was the unleashing of currents within the Church that gravely harmed the liturgy and offered a false humanism ultimately destructive to the pastoral care of souls....

To be a practicing [Roman] Catholic [sic] in many parishes, one had to buy into the pop culture of the 1960s and 1970s.

Which is why to be really Catholic it’s best to stay away from modern RC practice. Maintain old rites and stay in the historic mainstream.