Because they want guards to shoot people trying to get in rather than out of the country? I would have to see the polls in question to know whether the gay marriage comparison is applicable; I am sure you are aware of the distinction between civil unions and gay marriage, and it does make a big difference for a lot of folks (myself included, but then, because "marriage" connotes, and even denotes, so many religious things for so many people I would prefer their be no secular legislation on it in the first place.) Cain has a record of going well beyond mere immigrant or gay bashing though, as illustrated by the reference to his statement that most Muslims are extremists. What is the difference between saying Muslims are a threat to national security and saying Jews are?