"Freedom to practice one's faith in peace" is not a belief, as best I understand it. It is a political stance, and quite American.
"....the importance of spirituality" is, to me, a phrase grammatically correct but meaningless. Since this is a thread about the UK, the murder of Lee Rigby in the UK by a black Muslim was in part about "spirituality" and in part about "peace." Militant Islam is religiously grounded, and the formal definition of "peace" in Islam is submission to Islam. Words can be mean many competing things.
Your first comment on this thread to another was "If it's not your church, why do you care?" You entered the thread because another Freeper had an opinion about the thread's topic. I have an opinion, as do you. As did Antoninus. Now, as above, you believe and thereby profess your faith in your words.
Antoniuns clearly states on his page that he resents criticism here of his own religion.
Snarking about the C of E seems hypocritical of him.