I'm really mad at my Christian mother, what should I do?

That's terrible. Your parents will disown and alienate you. Christians aren't the most tolerant, but neither is any one who is shackled by one religion. Change scares us. We all as humans love to judge, but hate judgements passed on us, that's how ignorant and primative we Are. That's how primitive THEY are. I was like that, but I understood that u have to try to understand someone else before they tryto understand you. that's the nature of evolution, THAT'S the natural of life. Not false righteous judgements and inaccurate conclusions. I be your mom's racist too? If she's white then most likely. Oops see!! I just illustrated prejudice at it's finest. Good luck.