Living in a small conservative town, I am surrounded by theists on a daily bases. As soon as they find out that I'm an atheist, they always want to start a debate with me. Because most people here are college students, I encounter liberal Christians more often than not.
Most of them don't take the bible literally, and basically think that the bible is one big metaphor and use it as some kind of self help book. They usually have a good understanding of science, and don't think that science and religion contradict each other. I will gladly debate these people about philosophy and the history of the bible, and a lot of them eventually end up abandoning it after a while.
However, there are other types of Christians that I have a hard time talking to. I often run across people who are young earth creationist types, and have more apologist arguments than I could count. These type of people are very difficult to debate, because the layers upon layers of bullshit explanations run so deep, that I usually don't even know where to start. I feel like in order to debate these people, I would have to explain to them high school freshman level biology, which I really don't have time to do.
I can usually take these arguments apart pretty easily, but they usually don't even understand my explanations. A lot of these people were home schooled or went to religious schools their whole life, and have no idea what is wrong with these arguments.
How do you talk to people like this? How do you start, and is it even worth it?