I don't think it has to do with IQ as much as it does to do with ignorance. Many "pro-life" people are simplistic and two-dimentional. Many only see things on the surface and don't actually dig deep into the issue. They side with pro-life because if you're not "pro-life" then that must mean you're "pro-death". Its the same across the board with some people. Either you're with us or with the terrorists. Either you're evil or good. They're authoritarian types and therefore deal in absolutes. There's no middle ground to them.