Why has this bad catechesis been so pronounced since Vatican II?
After Vatican 2, there was a strong movement to re-look at catechesis. In part, it was most likely triggered by the emphasis that Vatican 2 put on Scripture, and making Scripture more widely known and understood among the laity.
That, in turn, put the Baltimore catechism under the spotlight. It was rote learning - memorization - and one of the things that was acknowledged at the time was that it had a tendency towards memorized answers to specific questions, but was very weak on faith formation. In short, an agnostic of an atheist could give a correct answer; it was head knowledge but too often not very capable of translation into how we live our daily lives.
An example - the civil rights movement got moving in the 1950s and early 1960s; the Baltimore Catechism did not provide a basis for determining what response one should have to, say, some children being refused admittance to a school based on the color of their skin. Nor did it give much of an answer to issues such as the Cambodian Invasion in 1970.
There was an over-reaction to the Catechism and to rote learning; essentially they through out the baby with the bath water. The went to an experiential approach which had little or no doctrinal information or foundation given. The net result is that kids learned a bit about Jesus’ Ressurection - they cut out butterflies; but had no clue what that meant to their faith; they got involved with the poor, but no connection to a real solid moral base.
An honest appraisal is that the Baltimore Catechism is not bad - it is quite good at teaching doctrine; but it is sorely lacking in faith building and needs more.
Instead, we got less.
And before everyone goes off half cocked about “liberal” bishops, I don’t think it was anywhere near the issue of whether they were liberal or not; it was simply a massive failure of leadership and common sense. Some were liberal. Others were beat down in terrms of what leadership meant as the old model had been tossed out (it was a bit along the lines of “Because I am the bishop and I said so” coupled with the laity being given the model of “pray, pay and obey”) and no new model had taken its place; some were simply mislead; some were not bright enough to figure out where this was going; some were not able to keep up with the amount of change the Church seemed to be going through.
Bishops did not write the new catechisms, and often they didn’t even directly approve of them; it was done in the chanceries. Granted they were resposnible for what went on, but so were they responsible for the sexual abuse by priests of which they often didn’t even have any information on - they were in the dark.