As do a significant percentage of people in Europe, interestingly enough:

http://www.nbcnews.com/storyline/europes-border-crisis/majority-leading-eu-nations-support-trump-style-travel-ban-poll-n718271

71% of respondents in Poland, 61% in France and 53% in Germany think ‘all future migration from mainly Muslim countries should be stopped’.

It’s not all of Europe (only a minority in the UK would support this), but a surprising number of people here would presumably support a more extreme version of Trump’s travel ban. Tad depressing to some extent.