I thought this was an interesting statement, from a page about the Bible and homosexuality:
“We have been unable to change the beliefs or actions of any of these hundreds of people on even one point related to homosexuality. Their views appear to be fixed. It is doubtful that much progress towards compromise on homosexual rights can be made by means of dialogue. We don’t expect that the attached essays will change the beliefs of many visitors to this web site. However, the essays may help people understand opinions that are not their own.”
My theory has always been that your politics are generally based on your emotional make up (unless they’re a reaction to your parents’ or culture, for example) and your views on the Bible are probably much the same. You can’t change someone’s mind if they don’t want to change, but you can give them information that will let them make an informed decision. Unless they’re a schoolkid in America, of course.