That one might surrender and meekly accept their likely death at the hands of the machine, I can believe. But all of them? This isn't the first such claim we've heard about AI danger.
I believe that Yudkowsky believes what he says he believes, for example. He says shut them all down worldwide, immediately, and if there are rogue nations who don't go along with it then launch air strikes on their data centres - even against a nuclear state. He said that three years ago. That's the thinking of a man who believes it's genuinely likely that the machines will kill us all in the near future.
And this is still considered extremist lunacy. That tells me the rest of them don't believe what he does.