If only they'd succeeded...
By what authority does Parliament have to tell the Holy Church how to teach children on matters of faith and morals?
They have no authority whatsoever to do so, since the Authority to teach all nations has been given by Christ to His One, Holy, Catholic and Apostolic Church.
From now on, we Catholics are going to have to either accept the new consensus that the State is God, or defend the Truth. The Gates of Hell, even the Gates of Hell which Gordon Brown is said to have opened upon Alaistair Darling, shall never prevail against the Church built upon the Rock of St Peter!