Are people telling the truth if there are a lot of them? Are people telling the truth if they say the same thing a decade apart in time? Or are people telling the truth about what they believe when they show a consistent resoned opinion that has all the basic objections to it understood?

I know people who make solid arguments for and against gun control and they all have a well thought out set of reasons and can usually deal with standard objections. I don't see this at all with the forced birth crowd.