I agree with most of what you're saying here. So, one thing that would help is semantics...to simply call all this s$hit "religious extremism" regardless of particular ideology/denomination.I think the biggest problem we have is an utter inability to speak plainly of the problem itself. For instance, no other group in the U.S. would be allowed to practice outright misogyny without condemnation, particularly from the left. No other group would be allowed to call for violence, due to a perceived or actual sleight to their religion. No other group would be ignored for attempting to combine religion and legal jurisprudence.
All of these things are utter anathema to the American way of life, yet they are frequent refrains in the practice of Islam. Do Americans have a right to practice Islam? Absolutely. Do they have a right to practice it any way they see fit without scrutiny or condemnation? Absolutely not!
Until we liberate our freedom of speech from the social fascism that's holding it hostage, we'll never even crack the shell of this nut.