I've made this overview for you:
Dawkins hate development: 1976 1989 1996 - 1996 (2) (+ comments):
A. Dawkins 1976: Faith means blind trust in the absence of evidence.
B. Dawkins in 1989: Faith is a kind of mental illness.
C. Dawkins 1996: Faith is the greatest evil of our age.
D. Dawkins: 1996 (2): Faith is comparable to the smallpox virus but harder to eradicate.
This claim is old, trivial, and worthless.
This claim is totally wrong. Religion (religious faith) is a human
instinct. Moreover, mental illness is statistically less common
among religious people than among non-religious people. Faith is
not listed in DSM-IV-TR.
This claim is historicallly, statistically, and biologically
wrong. Take behavioral biology, for example: Human evil is
determined by several instincts: Aggression instinct, violence
instinct, hate instinct, anger instinct, rage instinct, tribal
instincts, tribal war instinct, etc. The religion instinct is
in our historical times creating a lot of anti-evil effects.
Examples: Gandhi, Martin Luther King, Nelson Mandela, Dalai Lama.
This claim is interesting because it says more about Dawkins
than about faith. I've earlier pointed out that Dawkins' moral
is based on evolution and science, which is the same moral
foundation as the National Socialists did have. Note Dawkins'
rhetoric here: This is exactly the same rhetoric as Goebbel's
rhetoric. The ring is closed.