How should I explain to my grandma that she has extremist views that do not belong in the 21st century ?

My grandmother believes women shouldn't have the right to divorce and that they should never talk back to their husbands, but always sucb to their wishes... It makes me want to cry ... Whenever I try to argue with her about the topic, she just avoids my questions or just repeats the same thing over and over. She justifies her beliefs with Catholicism but I haven't met a modern day Catholic who doesn't believe in women's right to divorce. I'd like her to understand that she's a radical extremist and that she makes Christianity look bad. What kind of a woman believes that women should never talk back to their husband and that they should always give in to their wishes ? That sounds more like the Taliban rather than Christianity. I'm just so disgusted by my grandmother's undemocratic views on social matters. It makes me want to throw up that someone in the 21st century holds such anachronistic and backward views. Her beliefs are dangerous to Western civilization. Views like that, which endanger democracy, should be a criminal offense, just like the denial of the holocaust is illegal in Germany.