Theists, since you claim that your respective gods exist because a book says that they do, does that mean...?

I DO NOT claim that! And when you say "theists", you involve followers of all religions! Listen man! If you've got to question the credibility of Abrahamic religions and their beliefs then be specific!!!! THERE ARE A WHOLE LOT OF OTHER RELIGIONS IN THIS WORLD THAT EXIST WITHOUT MAKING SUCH CLAIMS! So either educate yourself or be more specific in this regard! You can't just blindly attack other people's beliefs without knowing much about it yourself!