I have talked before about why triangulation over austerity did not work for Labour, but why triangulation over Brexit seems to be more successful. Tony Blair’s latest intervention suggests it is worth asking the same question about immigration. (The report that he launched is well worth reading.) It is a question that lies at the heart of many Labour MPs views on the politics of Brexit.
One of the lessons from austerity is that it is very dangerous to triangulate on an issue where you appear, as a result, to admit fault or blame. If the deficit is a problem (in 2011, say), why did you let it get so large on your watch? This was why ‘too far, too fast’ failed: you acknowledge a problem, and therefore implicitly admit guilt. Getting over the idea that there is a delicate balancing act between reducing the deficit and protecting the recovery is difficult, particularly as it is also an incorrect idea.
It is an obvious point, but exactly the same was true for immigration. Just look at the headlines. The parallels with immigration and the deficit are clear. In office, Labour did the right thing in ignoring the deficit in 2009, and they also did the right thing in allowing substantial EU immigration before then. In both cases the instincts of many voters is to do the opposite: the government should tighten its belt in a recession just like the rest of us, and the country should be able to control and limit who comes in. In both cases, the moment a government that in the past appeared to ignore these voter instincts starts to appear to suggest the instincts are valid, they trash their own record.
You could argue that while this is clearly right for Miliband and 2015, it has less salience for Corbyn rather than Blair today. You could go further and say that what works for Brexit will work with immigration. Just as triangulation gets you the votes of those who sort of want Brexit but worry about the economic consequences, so too could triangulation over immigration get you the votes of those who want to control immigration but are worried about the economic consequences of May’s obsession with hitting targets.
Here I think we need to look at a second problem with triangulation, which is that the nature of the political debate is influenced by it (is endogenous to it). With Brexit it means that neither of the two main political parties is making the case against Brexit, so the (non-partisan) mainstream political debate tends to ignore the anti-Brexit case. One of the unfortunate consequences of the way the BBC and others interpret impartiality is to see it in terms of the two main political parties, rather than (in this case) the population as a whole, so the views of half the population get largely ignored.
You could argue that this may be of secondary importance for an issue like Brexit, because the anti-Brexit case is still fresh in the mind from the referendum campaign. But that is much less true of immigration. Immigration is now well and truly defined in the media as a ‘problem’, and it is very rare to hear a politician (or anyone else) sing its praises. (Jonathan Portes does his best, but when a well known BBC commentator says his views will not win many votes, you get a clear idea of what is going on. ) May is quite safe from the media when she says immigration reduces wages and access to public services. The implication of all this together with a large partisan print media is politicians fear talking about the benefits of immigration because that may ruin a carefully triangulated position.
The reality is of course very different. Study after study after study (from academics, not partisan think tanks) shows how much we benefit from EU migration, and how it has virtually no impact on wages. Immigration increases the resources available to provide public services by more than it uses those services. Yet this knowledge is not reflected in the media discourse. The reason is straightforward: the political right wants to use immigration as both an excuse (for the impact of austerity) and a weapon (to achieve Brexit, for example), and the left by and large keeps quiet because it is triangulating.
People in the media may object by quoting polls that suggest the public overwhelming wants to control immigration: they are just reflecting that opinion. (But see footnote .) But polls also say people want less taxes. If you dig deeper public attitudes are far more nuanced than the public debate suggests. Here is some data, from an international study, by IPSOS-MORI:
So how can something that people are ambivalent about become a major political issue that helped push us out of the EU? One answer is the sheer weight of numbers, and for some particular regions not previously experiencing inward migration that seems to be true. (It also reflects the inertia in public service provision.) But the rise of anti-immigration sentiment elsewhere in Europe where recent flows are not exceptional suggests other forces are at work. In part it is far-right parties exploiting fears about terrorism. But much more importantly in the UK, it reflects the deliberate exploitation of immigration as an issue by the Conservative party.
This predates the increase in immigration from Eastern Europe. In 2001 William Hague talked about Tony Blair wanting to turn the UK into a ‘foreign land’. The political temptation on the right to play the immigration card is strong, but until Brexit it has always been duplicitous. The wiser heads in the Cameron/Osborne government never wanted to hit their own targets because of the economic damage it would cause, and as a result they did not even bother to use all the controls that were available with free movement. As Chris Dillow says, immigration was the only scapegoat left to deflect concern about austerity and stagnant productivity. Immigration scapegoating became part of what I have called neoliberal overreach. 
This is I think the main reason why triangulation over immigration is not an effective strategy. By trying to appeal to those who are moderately concerned about immigration, Labour falls into a right wing trap, which is to implicitly validate their scapegoating. You can only convincingly argue that scarce public services are due to austerity rather than immigration if you can argue at the same time that immigration brings more resources to the public sector than it uses. You can only argue that economic policy is responsible for stagnant wages if you also say that it is not the fault of immigrants. Labour should go with its members and argue for the benefits of immigration, and in particular free movement with the EU. 
 This simple exchange illustrated so clearly to me why the BBC’s so called mission to inform and explain is often no more than a joke. Rather than regard popular beliefs that are incorrect as something the BBC has a duty to try and reverse, they are instead used to dismiss expertise.
 This is not just a UK phenomenon: around the world politicians use immigrants as scapegoats.
 I’m often told that economic studies of the benefits of immigration ignore ‘existing capital like housing’. Yet we need migrants to help build more houses for natives as well as migrants. The only thing that migrants cannot bring to the UK is more land, but with an effective regional policy which we desperately need anyway we have plenty of land.
 Some have asked why I called it overreach, when most just talk about the collapse of neoliberalism? For a start, using immigration as a political weapon is not a natural consequence of neoliberalism, and instead comes more from the social conservative part of right wing parties. Also while I think neoliberalism encouraged austerity, I can quite imagine those with neoliberal views forsaking it.
 There is an argument that free movement should be opposed because it is unfair to non-EU migrants. Yet you could make the same point about any trade agreement between two countries: it is unfair on all other countries. Arguments about equity that make some people worse off and no one better off give equity a bad name.