Here’s the link. I don’t usually cover this sort of stuff, but I have quoted extensively from the report below because this is some nice data, and nice data sometimes disappear from the internet if you don’t copy it in time.
The sample sizes here are large (“The total number of respondents was 10,195 (c. 1,000 per country).”) and a brief skim of the wiki article about Chatham House hardly gives the impression that this is an extreme right-wing think tank with a hidden agenda (for example Hilary Clinton received the Chatham House Prize just a few years ago). Data was gathered online, which of course might lead to slightly different results than offline data procurement strategies, but if anything this to me seems to imply that the opposition seen in the data might more likely be a lower bound estimate than an upper bound estimate; older people, rural people and people with lower education levels are all more opposed than their counterparts, according to the data, and these people are less likely to be online, so they should probably all else equal be expected if anything to be under-sampled in a data set relying exclusively on data provided online. Note incidentally that if you wanted to you could probably sort of infer some implicit effect sizes; e.g. by comparing the differences relating to age and education, it seems that age is the far more important variable, at least if your interest is in the people who agree with the statement provided by Chatham House (of course when you only have data like this you should be very careful about making inferences about the importance of specific variables, but I can’t help noting here that part of the education variable/effect may just be a hidden age effect; I’m reasonably certain education levels have increased over time in all countries surveyed).
“Drawing on a unique, new Chatham House survey of more than 10,000 people from 10 European states, we can throw new light on what people think about migration from mainly Muslim countries. […] respondents were given the following statement: ‘All further migration from mainly Muslim countries should be stopped’. They were then asked to what extent did they agree or disagree with this statement. Overall, across all 10 of the European countries an average of 55% agreed that all further migration from mainly Muslim countries should be stopped, 25% neither agreed nor disagreed and 20% disagreed.
Majorities in all but two of the ten states agreed, ranging from 71% in Poland, 65% in Austria, 53% in Germany and 51% in Italy to 47% in the United Kingdom and 41% in Spain. In no country did the percentage that disagreed surpass 32%.”
“Public opposition to further migration from Muslim states is especially intense in Austria, Poland, Hungary, France and Belgium, despite these countries having very different sized resident Muslim populations. In each of these countries, at least 38% of the sample ‘strongly agreed’ with the statement. […] across Europe, opposition to Muslim immigration is especially intense among retired, older age cohorts while those aged below 30 are notably less opposed. There is also a clear education divide. Of those with secondary level qualifications, 59% opposed further Muslim immigration. By contrast, less than half of all degree holders supported further migration curbs.”
“Of those living in rural, less populated areas, 58% are opposed to further Muslim immigration. […] among those based in cities and metropolitan areas just over half agree with the statement and around a quarter are less supportive of a ban. […] nearly two-thirds of those who feel they don’t have control over their own lives [supported] the statement. Similarly, 65% of those Europeans who are dissatisfied with their life oppose further migration from Muslim countries. […] These results chime with other surveys exploring attitudes to Islam in Europe. In a Pew survey of 10 European countries in 2016, majorities of the public had an unfavorable view of Muslims living in their country in five countries: Hungary (72%), Italy (69%), Poland (66%), Greece (65%), and Spain (50%), although those numbers were lower in the UK (28%), Germany (29%) and France (29%). There was also a widespread perception in many countries that the arrival of refugees would increase the likelihood of terrorism, with a median of 59% across ten European countries holding this view.”