I think we have some slippage of concepts here. The majority of voters want tighter restrictions, but only half agree with Trump's position on a ban on Muslim migration.
From the article you linked:
While 71 percent of Republican voters supported the ban
I don't believe any other Republican has supported the ban, so that the issue is an overwhelming win for Trump in the Republican Party.
I'm curious about your thoughts on my piece in Salon analyzing Trump's emotional appeal using rationality-informed ideas. My primary aim is using the Trump hook to get readers to consider the broader role of Systems 1 and 2 in politics, the backfire effect, wishful thinking, emotional intelligence, etc.