I'll bet your atheist friends laughed at that and said, "Come on all the way over to our side now, for Chrissake!"

I'd have her arrested and charged with assault.

That’s a tough situation you are in. Religious nut job parents who don’t respect personal choice are just about impossible to deal with. It would have been easier to wait until you are out of the house before telling mom you don’t agree with her viewpoint. And now you have two choices - Either continue to fight the battle for independence or act like you are convinced by them and wait until you are out of the house. Neither is a very good choice. The fact that Mom called you a bigot and then threw a Bible at you is very telling. Obviously Mom is demonstrably a religious bigot herself; and from her supposed viewpoint sacrilegious for throwing the Bible. It just goes to show that bigots and hypocrites are quick to call others what they themselves are.

That's Christian love for ya

My parents were the same way. Eventually I learned to just humor them and avoid the topic if at all possible. I would expect that you'll only bring more conflict broaching this topic, and they will never give an inch.

I’m religious (Jewish) and I think agnosticism is a perfectly valid viewpoint. You’re not sure either way and your mother is a bigot: she’s literally a Bible Basher. What I do have an issue with is atheism. I think most people are agnostic, but say they’re atheists. But for atheism to be intellectually defensible would require a knowledge of all “beings” who have lived or will ever live. There’s no other way to confirm that “God” does or does not exist. So until we die, the only being who could confirm whether God does or does not exist, is in fact, God.

Hurl a dictionary at her, and tell her to look up the definitions of "agnostic" and "bigot". Then hurl a thesaurus at her for good measure.