New rules for faith schools say males should be able to wear items usually worn by females such as tiaras (stock image)

Most of these politically correct fads are just designed to wind us up and provoke us. For example, I now regret having wasted so much time trying to argue rationally about same-sex marriage. All the sexual revolutionaries wanted was an excuse to call me a bigot. They could then ignore everything I said, or tell lies about me, or both.

It was a tiny issue. In 2014, for example, in England and Wales, there were 247,372 heterosexual weddings, and 4,850 same-sex marriages. Already there are several hundred same-sex divorces each year.

Once the novelty has worn off, I suspect the numbers of same-sex unions will decrease, just as heterosexual ones are doing. The point – that the old ways are dead and gone – will have been made, and the campaigners will move on to something else.

I once thought the same about the transgender issue. But the idea that people are whatever sex they think they are is a terrifying weapon in the hands of modern Thought Police. Whatever you say, you cannot possibly be right about this.

Express any opinion (apart from total submission), and within minutes you will be besieged by condemnation. It will be cleverly based on the idea that you are somehow being cruel to some troubled person, even though you aren't doing this at all.

But that is just a pretext. In reality, a whole moral and social system is being destroyed, and traditional ideas of male and female are the next target, now that husbands and marriage have been done away with. For once you begin down the road of sexual revolution, there's no end. There will always be someone more militant than you.

Since the French Revolutionaries set up the guillotine, the same thing has been true. Revolutions are all based on the false idea that humans and their nature can be changed.

And once changed, they will fit neatly into the Utopia that is planned for them. Utopia, as we find every so often in Russia, China and Cambodia, can only be approached across a sea of blood, and you never actually arrive.

The opposite view (now very unfashionable) is that we are all made in the image of God and cannot be changed into something else. This sounds odd to most modern ears. But in fact it is the foundation for the absolute respect for human life and liberty which underpins civilisation. Once it's gone, you can make excuses for anything in the name of some invented 'right'. Mass abortion is the obvious example.

And that is why The Mail on Sunday's exclusive story, that a teacher has been disciplined for failing to respect the transgender gospel, is so important. His slip was small, and momentary. One of his pupils, who would once have been called a girl, has decided to be male. He called this person a girl. So he must suffer.

An image that tells you all you need to know about duty The sight of the Queen and Prince Philip watching the Remembrance ceremony last Sunday was almost unbearably poignant for me and (I suspect) many of my generation. The Duke of Edinburgh was plainly straining every nerve and sinew to do honour to the fellow warriors he actually knew and fought alongside so long ago, despite the burden of his great age. Nothing on Earth was going to stop him doing that. There are so few left from that time. The Queen, with an almost equal effort of will, was yielding one of her most important duties to her successor, a very hard duty indeed. They are now both so far ahead of us in years that they already seem to be in another time altogether, almost beyond our reach. It is disquieting and upsetting to see these things, inevitable as they are. I feel a great sense of foreboding. Advertisement

In the vanished world of absolute truth, the student's sex would not be a matter of opinion. People might (and I would favour this) treat the person's view of their sex with sympathy and try to go along with it. Who would want to hurt somebody on a matter of such delicacy?

But in the new revolutionary world, truth is what the revolution says it is. This works in many ways.

A Left-wing newspaper recently claimed I had said something I had not said, and do not think. Shown irrefutable evidence that I had not used the words alleged, it continued to claim that I had used them, because that is what it thought I had said.

This leads down a very dark staircase. Reality must increasingly be forced to fit the beliefs of the new elite. Teachers must be punished for speaking the truth, so schools are no longer places where truth is respected or dissent allowed – which means they are dead to all intents and purposes.

And perhaps most grievous of all, teenagers are placed on a medical conveyor belt which leads to powerful body-changing drugs and possibly to surgical alteration.

It is not just crabbed reactionaries such as me who fret about this. In an eloquent article in The Times, the far-from-conservative commentator Janice Turner recently warned: 'But in a decade, when our adult children turn to ask, 'Why did you let me do this? Why didn't you stop me?' we may wonder if this was progress or child abuse.'

The answer to the question 'Why didn't you stop me?' will be even sadder.

We are failing to stop this because we are afraid of the intolerant revolutionary mob, which would lock up dissenters if it could, but for the moment contents itself with Twitter storms and witch-hunts.

I can't laugh this off. It is not just a wind-up. It is a threat to free thought and, after many months of staying silent about it, I feel I have to say so.

That faint rumble you can hear is the mob assembling for another heresy hunt.

At last there is an antidote to the foolish film The Death Of Stalin, which trivialises this monster and his crimes. It is Angus Macqueen's brilliant, harrowing documentary Gulag, which you can watch on the BBC iPlayer only until December 6.

See it above all for the astonishing film of the man-made hell called Norilsk, and the interview with a woman who explains exactly how Stalin robbed her of the ability to trust her fellow humans. But be warned: there are no jokes.

At last there is an antidote to the foolish film The Death Of Stalin. Pictured: Michael Palin as Molotov in the film

Last Monday the Prime Minister rattled her plastic sabre at the Russians, in a silly speech at the Mansion House. She doesn't even know what she's talking about. She said: 'Russia's illegal annexation of Crimea was the first time since the Second World War that one sovereign nation has forcibly taken territory from another in Europe.' This is wrong. Nato Turkey (now an increasingly nasty despotism) seized Northern Cyprus in 1974 and still sits there, unpunished.

She claimed Russia had 'repeatedly violated the national airspace of several European countries'. I asked No 10 for details. Two days later, whimpering that the information was somehow secret, a spokesman could only admit 'Russia has not violated UK airspace'. So whose airspace had it 'repeatedly' violated? No answer. If it's true, the Russians must know, so why the secrecy? The Russian threat is a fake.