He's a great historian, but it isn't that simple.
It doesn't explain the fascination among elements of the right with autocratic regimes such as Milosevic (and yet, interestingly, detestation of the supposedly "authoritarian" EU), which is probably based on warped nationalist ideals. (See the Canadian globalresearch website, where a lot of this nonsense is spouted)
Nor does it explain "leftie" Andy Burnham berating, with justfication, our "right wing" government for its attempts to cover up the Litvinenko affair, and its slow response to the findings. Of course the govt has reasons for that which are not linked to the things Simon S-B rightly mentions, but that isn;t the point.
Political hang-ups and philosophies do not follow "left" and "right" so easily.
Corbyn I would say is more of a naive idealist than a "west hater". He chooses to surround himself with them though. And he seems to be a source of great fascination with the right :-)