Why is it that atheists believe that Christians do not engage in freethought when I was raised in a secular environment and came by my beliefs by examining the evidence and finding this religion sound?

As a nonbeliever, you engaged in free thought and then became a Christian. With your liberal background you will probably continue to engage in free thought. After all, I know… of no atheists who believe that Christians are unable to do so. This does not validate your decision, merely that you have made a choice that suits you and your circumstances, and which most atheists will respect. ( Full Answer )