Yes, I agree, your expression was typicaly churlish and hardly conducive to civilised debate.
VF: "This truth is the only basis for sound pastoral practice relating to the Sixth Commandment."
Your reply:  "This opinion is what the celibate men of the magisterium teach. It is the basis for some terrible pastoral practice."
Why is it opinion? You don't say. Who are 'the celibate men of the Magisterium? Again you don't say. What is the terrible pastoral practice? Yet again you don't say.
Our Lord was celibate. Does that disqualify His teaching on marriage?
VF: "Anyone contradicting this truth is a heretic and an enemy of Jesus Christ."
Your reply: Anyone contradicting my personal opinion is a Catholic in good standing."
That reply is the sort of thing one might expect from a child.