Why are Christians so convinced that the bible literally means what it says?

When religion was forced on people centuries ago (the dark ages, lol how ironic) it was passed down and down. The bible was shoved down my throat as well. to answer your question, its blind following. People see their parents and grandparents firm belief and how its pushed on them. Besides, why take the chance of going to hell when you can't live life without a rule book which contradicts itself and says you CAN do horrific things like own a slave and commit murder in cases