I can agree with the sentiment. Knowledge of the bible itself has never been very strong amongst the students other than a select few “clobber quotes” (condemnations of various activities, not exclusively LGBT by any means) but the teachings they produce, tradition or Papal statements are known very well.
You may be right here to an extent, and I can see this in some children. Even the least gifted amongst them can tell me that abortion is deemed a terrible sin (albeit not always described why very well).
Homosexuality and contraception however?:dts: They see the evidence, they have it explained to them but they still reject it. It’s not so much a sense of moral relativism but rather a rejection of absolutism. Homosexual teachings are routinely deemed as hateful and oppressive (The Spanish Inquisition burning “Sodomites” often comes up

), Contraception is deemed a “lesser evil” (“Soon as God starts giving me a pay packet I’ll start pumping out more kids” was one response the parish priest received from a parent!

) . Divorce is a bit different and disinterest seems to overtake any approval or condemnation
The past ten years have seen some incredible shifts in mindset I certainly never saw coming. It looks like it’s not only the UK experiencing it.