Why is it that those who oppose the rapture are so vitriolic in their opposition, sometimes to the point of saying that those who believe that the Bible clearly teaches this are believing a lie and are deceived?
Most people hold to the rapture position they’ve been taught. No matter whether they’re pre, mid, post, or none at all, very few can support their position objectively from Scripture, because they haven’t studied enough to find the truth for themselves. So some of them resort to emotion and attack instead, claiming that people who believe something different from their position are deceived. It’s best to leave these people alone. Pretty soon this will all be sorted out and everyone will be in agreement.