:hehe: You should definitely get a t-shirt printed saying that
Have you ever tried telling someone under 30 that Obama was not only a bad president, but one of the worst ever. They simply don't get the concept that he was anything but a knight in shining armour. There is more than a touch of Oh Jeremy Corbyn..... about the whole thing. Which, incidently and ironically (in its proper sense) always reminds me of the Nuremberg rallies.
I believe he's referring to the tendency to unthinking, unquestioning and brainless personality cult that has - bizarrely - sprung up around Corbyn. Whether Corbyn is like Hitler is not the point (he's not - due to not being clever or magnetic enough, for starters). The point is that the dynamic is similar.