Varian your identification of national newspaper titles with a remain or leave bias sounds right.
In "How the United Kingdom voted on Thursday ... and why," a survey of 12,369 voters in the United Kingdom conducted the day of the referendum, Lord Ashcroft found the No. 1 issue propelling people to vote "leave" was their belief that the U.K. should remain a self-governing entity not responsible to some supranational body writing rules and regulations about the economy and other matters.
This was true for all voters, those who described themselves as Labour voters as well as those who said they were Conservative. It's a direct shot at "big government" interference in local affairs coming out of the bureaucracy in Brussels. Immigration – or immigration sans assimilation, the second most important motivator behind a vote to "leave" the EU.
To quote directly from the analysis of the poll:
Nearly half (49%) of leave voters said the biggest single reason for wanting to leave the EU was "the principle that decisions about the UK should be taken in the UK". One third (33%) said the main reason was that leaving "offered the best chance for the UK to regain control over immigration and its own borders." Just over one in eight (13%) said remaining would mean having no choice "about how the EU expanded its membership or its powers in the years ahead." Only just over one in twenty (6%) said their main reason was that "when it comes to trade and the economy, the UK would benefit more from being outside the EU than from being part of it."
Those who sided with "remain," interestingly enough, did so out of fear. Lord Ashcroft's poll found the argument most persuasive to Conservative and Labour voters alike was the idea things would get much worse, in some nonspecific way, should the U.K. leave the EU. Not exactly a ringing endorsement of the founder's vision of a United Europe.
lordashcroftpolls.com/2016/06/how-the-united-kingdom-voted-and-why/
“Project fear” as it became known, instilled by the Remain campaign and supporting newspapers and other media was cross party.
The traditional left wing and right wing or centre publications were in some confusion as to which side to support, since remain votes and leave votes were coming from across the political spectrum, possibly not so with the Liberal Democrat voters, since membership of the EU as a political institution is well established in their modern ideology.
The result was that remain electorate were influenced by publications some media and across party politicians who chose supported remain. Whilst the leave electorate were similarly exposed to the same media, publications and political cross party supporters who chose to support the leave campaign.
Yesterday 15th May 2018 the latest official figures from the Office of National Statistics showed that employment is at a record high, with more than 2,000 finding work daily. The current workforce stands at 32.34 million – the highest since records started in 1971. The total having risen by 609,000 since the referendum of June 2016.
The ONS also said the number of EU citizens working in Britain has also gone up since the referendum almost 2.37million were employed in March 155,000 more than at the beginning of 2016.
Workers from outside the EU have risen by 235.000 over the past two years.
John Longworth former head of the British Chamber of Commerce said: “Project fear has been trounced by the outstanding job figures”.
Whilst the Eurozone unemployment figures remain high at 8.5% compared to the UK since Brexit where the figures are at a 43 year low of 4.3%.
Unemployment rates in the Eurozone by country are:
France 8.8,% Italy 11% , Spain 16.1%. Whilst the average across the advanced world is a mere 5.4%
Chief Economist of Earnst & Young believes the labour market figures indicate that the “economy is not as weak” as some have suggested.
The ONS figures show wages are rising faster than for nearly three years. Average pay rose by 3% the biggest rise since 2015 ahead of inflation by 2.5 per cent.