Meanings of such fanaticism in English

The world has never seen such fanaticism, and the movement spreads day by day.

But who teaches such fanaticism?

Certainly, when Islamic fundamentalists resort to telling us about God rewarding violence, most normal people recoil and despair of such fanaticism.

He was moved to question Jimmie about his past life, so as to understand how such fanaticism had come to be.

Such fanaticism is almost unparalleled.