I’m worried about Yvette Cooper. Is she stuck in a stable time loop? Is she desperately trying to escape it, banging on the walls of a bubble in the Web of Time, frantically trying to get a message to the outside world to send help, and quickly?

Or maybe she’s suffering from anteretrograde amnesia, unable to form new memories.

I just ask because Cooper is in the news today calling for “a debate” on immigration, saying that “there just wasn’t much debate about it; it was one of those things that people just thought was a bit too difficult to talk about”.

Really? She seems to be talking about the accession of ten countries to the European Union, most of them from Eastern Europe, and bringing with them a boom in migration into Britain. Except that cannot possibly be right, because I distinctly recall Tony Blair giving a speech about immigration, rather a long one, in Dover in 2005. That’s right; perhaps worrying that the speech wouldn’t be sufficiently on the nose in its own right, they did it quite literally by the white cliffs of Dover.

Still, Tony Blair hasn’t been leader of the Labour Party for a decade now. Perhaps she means under his successor, Gordon Brown. But wait, that cannot be right either, because in his first speech to Labour party conference as leader he promised “British jobs for British workers” and when he kicked off his re-election campaign he did so with a speech about, you guessed it, immigration.

Maybe she means after that? Well, Andy Burnham made talking about immigration a central plank of his campaign for the Labour leadership, not once but twice. Still, he didn’t win, and perhaps Ed Miliband didn’t ever talk about immigration, apart from when he engraved the promise to have “controls” on immigration on an eight-foot stone and brought a nifty series of mugs on that same theme.

If he really did sit mute for five years as leader, that seems a pretty damning verdict on him, and particularly his shadow home secretary. I can’t remember who that was. I think it rhymed with “Trooper”.

Then of course, Andy Burnham ran for the leadership again and once again immigration was a central theme: he had a whole spiel about some guy he met who had no friends at work because everyone else spoke Polish. That was in 2015. I seem to recall that Yvette Cooper ran for the Labour leadership, and went so far as to talk about immigration, suggesting that Labour had been too “squeamish” to discuss the issue.

At least I think that’s what happened. I’m finding it hard to tell with these Labour leadership campaigns. They blur into a fungible mess: basically, Twitter gets very angry and then Jeremy Corbyn wins.

And if I’m not mistaken, literally days before a referendum on our continuing membership of the European Union, about half of the Labour Party was suddenly seized by a desire to talk about the need to “reform” free movement. As doing this was probably the least helpful intervention imaginable, I find it hard to believe that politicians in general, and Labour politicians in particular, have a problem with talking about immigration.

It seems to me that Britain’s problem is not a deficit of debates about immigration, but a surplus. It feels as if, actually, we’re pretty clear what people think about immigration. About a quarter of the country thinks that immigration is a good thing and three-quarters are varying degrees of hostile to it.

I really don’t think what we need from our politicians is another “debate” about immigration. What we need is a policy that isn’t inhumane towards people seeking to come here, that sustains our economic model, keeps our universities world-leading, and can achieve public support.

My suspicion is that Cooper knows this too, but because she doesn’t know what that system would look like, she’s just going to the use the word “debate” again.

Unless she really is stuck in a time loop.