Most western Europeans – and even many who vote for far-right parties – would like Kamala Harris to win the US presidential election, polling suggests, but fewer are confident that she will and most expect violence if Donald Trump is not elected.

The YouGov Eurotrack survey of voters in the UK, France, Germany, Italy, Spain, Sweden and Denmark found that the Democratic vice-president was the preferred winner in every country , with sizeable majorities in favour of Harris in all except Italy.

Denmark’s voters were the most eager to see Harris in the White House at 81%, followed by 71% in Germany, 65% in Spain, 62% in France and 61% in the UK; the 46% of Italians who shared the same view was still almost double the percentage of those who instead opted for Trump.

Unsurprisingly, support for the Democratic candidate was strongest among Europe’s left-leaning and centrist voters, reaching 80% to 90% among backers of parties such as the Social Democrats and the Greens in Germany, Sumar in Spain, Emmanuel Macron in France, the Social Democrats in Sweden, and the Liberal Democrats in the UK.

However, those who recently cast their votes for traditional centre-right parties also preferred Harris over Trump, by often significant margins: 89% of Venstre voters in Denmark, 78% of Christian Democrat (CDU/CSU) voters in Germany, 66% of People party voters in Spain and 58% of Conservative party voters in Britain.

And even among western Europeans who recently voted for far-right, nationalist and populist parties, sizeable numbers of respondents in all seven countries said they would rather see Harris elected president than her Republican rival.

Trump was the favoured candidate of far-right voters in Spain, the UK, Germany and Italy, with 54% of Vox voters (against 23% who preferred Harris), 51% (27%) of Reform UK voters, 50% (36%) of Alternative for Germany voters in Germany and 44% (32%) of Brothers of Italy voters saying they wanted the former president to secure a second term.

But among far-right Sweden Democrat voters, 49% said they would prefer Harris in the White House against 31% who favoured Trump, while 46% who voted for Marine Le Pen in the second round of France’s 2022 presidential election said they would rather the US Democratic party candidate won, against 31% who preferred Trump.

Western Europeans were less sure, however, that their wish would become reality. The general expectation was that Harris would emerge victorious on 5 November, but the numbers were lower, ranging from 43% in Italy, 46% in Sweden and the UK, 47% in France and 52% in Spain to 61% in Germany.

Asked whether they considered the outgoing Democratic president, Joe Biden, had done a great, good, average, poor or terrible job, the most common assessment across the countries surveyed was “average”, with percentages of people sharing that view ranging from 39% in Britain to 46% in Spain and 47% in Germany.

They mostly think Harris would do a better job, with the most widely-held belief in each country being that the current vice-president would make either a “great” or a “good” head of state. About 37% of Italians held that view, climbing to 45% in Spain, 57% in Germany and a high of 64% in Denmark.

Expectations were markedly worse for Trump. In each country, the most common view – ranging from 48% in Italy, through 59% in France and 69% in the UK to 77% in Denmark – was that the Republican candidate would make a “poor” or “terrible” president.

If Trump is defeated at the ballot box next week, western Europeans expect violence. As many as 73% in Denmark think there will “definitely” or “probably” be violence if Harris wins, with between 62% and 67% sharing the same assessment in most of the other countries surveyed.

Italy was again the exception, with the poll, carried out over a period of 10 days in mid-October, suggesting only 47% thought violence was likely. But there, too, the percentage was greater than the 32% who thought violence was unlikely.