I didn't demonize 70% of Christians because not all Christians are extremists and not all Christians actively support extremists but the religion in the name of which most of the acts of domestic terrorism in the US has been committed has been Christianity, not Islam. Christianity is the largest religion in the US and it has extremists. Many Christian churches and Christians support extremism of various kinds. 
You mention that the Christians are impotent without the other 92% of the population but really they only need about 45% of the population of that 92% to look the other way when they do their dirty business to American women and people of other faiths such as Islam. White evangelicals supported Trump in very large numbers making them either racists or friends of racists. American women are familiar with their pro-life violence and legislation against women's rights. 
Extremist elements of Christianity don't accept modernity. They're tribalists like the Taliban.