Creationists and Holocaust deniers are both very similar - both are denying what is a perfectly manifest fact. In the case of Holocaust deniers it's more recent history, but in both cases the evidence - in favour of the Holocaust and evolution - is simply overwhelming. That doesn't mean they are morally or politically equivalent. But they are equivalent in denying history.
Richard DawkinsI would challenge the statement that my scientific instincts are any less rigorous than [Richard Dawkins]. The difference is that my presumption of the possibility of God and therefore the supernatural is not zero, and yours is.
Richard Dawkins