Everyone should read a short German play “Biedermann und die Brandstifter.” (Biedermann and the Arsonists). The story is of a middle-class family man who invites some bad dudes to live with him. They tell him plainly to his face they are going to burn down his house and in his full view carry out their their preparations to do so. Biedermann’s reaction is pure denial until the arsonist do exactly that; they burn down and destroy his home. And they are perfectly upfront with a “hey, we told you what we were going to do” attitude. It’s typical of post-WW2 German literary expression; it’s full of self-pity as to how the Nazis could have gotten so far.
But it is highly illustrative as to human nature. Ahadinejad and his mullah puppet masters are the arsonists. They are plainly telling the western world what they intend to do.
And the west is watching with open eyes in full denial.
People for the most part believe what they wish to be true.