LONDON — With fond memories of his time in Italy as a student, Ted Bainsfair voted for Britain to remain in the European Union in last June’s referendum, and was disappointed to find himself on the losing side. But that was then.

Mr. Bainsfair, 27, now says he wants to get on with withdrawal, known as Brexit, even if it means a clean break with the bloc.

“I have got to the point where I don’t really care — it’s not going to be reversed,” he said reflecting on the Brexit vote, while standing outside the Landor pub on a recent sunny afternoon. “It happened. I accept it, and I want to get it over and done with.”

Britons are preparing to vote again on Thursday, this time in a general election, before detailed talks on Brexit, arguably the country’s most important negotiations since World War II. But even in Vauxhall, a sprawling slice of multicultural south London — where almost eight out of 10 votes cast in the referendum were for remaining in the union — many just want to get on with it. And they have turned their attention to other issues.