“jsh31- can you explain what you mean? what has changed?”
Unfortunately the passage of time weakens the impact of a Nes (miracle) by many. Extremism both on the left and the right is driven by a lack in the Mida (personal character trait) of HaKaras HaTov (appreciation of the good). It starts with denying the good than people have done (such as the Medina and IAF pilots in the 6 day war) and progresses to denial of the good that G-d has done. The denial deepens and can become outright Kefira.