Europe would take Britain back tomorrow. The catch? The euro and open borders

Ten years after Britain voted to leave the European Union, the political mood on both sides of the Channel appears to have softened. Many Britons now question whether Brexit delivered everything its supporters promised, while voters in France and Germany appear surprisingly open to welcoming the United Kingdom back into the European project.

There is, however, a significant obstacle standing in the way.

New YouGov polling suggests that while majorities in both France and Germany would support Britain rejoining the European Union, they have little appetite for restoring the special arrangements Britain enjoyed before Brexit. If the UK wishes to return, many Europeans believe it should do so on the same terms as everyone else.

That would mean joining the euro and participating in the Schengen free travel area, two policies that many British voters have historically opposed.

The findings reveal a striking contradiction at the heart of the modern Brexit debate.

In France, 58 per cent of respondents support Britain rejoining the European Union. In Germany, support rises to 63 per cent. A decade after one of the most divisive political decisions in modern European history, there appears to be little desire among voters in either country to keep Britain permanently outside the bloc.

Yet goodwill has its limits.

When asked whether Britain should be allowed to return under the same terms it enjoyed before Brexit, support falls sharply. Between 58 and 61 per cent of French and German voters believe the UK should be required to participate fully in the European Union's major institutions and policies.

Only around one in five believe Britain should be permitted to retain the opt outs it previously negotiated.

That distinction matters because Britain's membership was never typical.

Before Brexit, the United Kingdom remained outside the eurozone, retained control of its own currency and stayed beyond the Schengen area. Successive governments regarded those exemptions as essential protections of British sovereignty and as evidence that membership did not require complete political integration.

Many Europeans now appear to take a different view.

For them, Brexit was a choice. Britain decided to leave. If it wishes to return, it should do so as a fully committed member rather than as a country seeking exceptional treatment.

The polling also highlights the difficulty facing those who advocate rejoining.

While support for returning to the European Union has increased among British voters in recent years, enthusiasm weakens considerably when the practical implications are made clear. According to the survey, support for rejoining falls from 55 per cent to 35 per cent if membership would require abandoning Britain's former opt outs.

In other words, many Britons may be open to closer relations with Europe, but far fewer are willing to embrace the deeper integration that European partners increasingly expect.

For supporters of Brexit, the findings will reinforce a long standing argument. The referendum was not simply about leaving the European Union. It was about retaining control over borders, currency and national decision making. Any route back into the bloc that required sacrificing those positions would represent a fundamentally different proposition.

For those who favour rejoining, the challenge is equally clear. Winning the argument in Britain would only be half the battle. Securing favourable terms from European partners may prove even harder.

Ten years on from the referendum, Europe may be more willing to welcome Britain back than many expected. The conditions attached to that welcome, however, suggest the debate has moved on.

The question is no longer whether Britain could return.

It is whether voters would accept the price of doing so.