The problem is, you're not just trying to convince -her- to STFU (not likely) but you're -really- trying to convince the powers that be who have to put up with her crap that she's disrespecting your religious choices with her holier-than-thou censorship.
So, getting violent or confrontational will only justify them pulling the plug on materials you enjoy just to end the debate; however, by reminding them that her rights are not being touched in any way, and that if they capitulate your religious freedoms -are-, they have the ammunition necessary to take the neutral stance dictated to a government organization by the laws of your country.
Regardless, religion isn't the problem here. It's the poisonous belief that fundamentalists should have any right to dictate doctrine to moderates or even non-believers. Fighting against this abuse of religion is exactly what 'Freedom of Religion' is meant to do; that one's soul (if it exists) is apportioned as the owner of that soul sees fit.
Fundamentalists should not be allowed to attack others based on belief or religion. It's based on a belief that believers are inherently better than non-believers, and should be apportioned temporal power in order to guide the lesser individuals. Fascism, by definition.
This is why it is important for -believers- in a faith to fight against fundamentalism as much as non-believers... because these fundamentalists not only misrepresent your religion and use your messages of love and peace to preach hate and oppression, but they also will hit you with it when you're not 'orthodox' enough.
And it doesn't matter if that religion is Christianity, Islam, atheism, Shinto, or even Church of the Subgenius. Fundies are not interested in people's rights, freedoms, or even their opinions. They hold an opinion that you are less than them, and that you are not equal. In otherwords, they practice a form of bigotry that they can use 'freedom of religion' to hide behind.