I agree with you on the question of China/Japan, but the flavour I detected was, as I said, neither one nor the other, but rather created by taking their common characteristics and stripping fown to their essentials. The internal enemy is not "Jews" or "capitalists" but simply a man (probably fictional) who opposes the regime, as the regime is the whole frame of reference for its citizens. The external enemy is not fascism or Bolshevism, but is constantly switching. The leader is venerated because he's the leader, the tribalistic divisions drawn are purely between us and them. The dictatorships are, in fact, quite deliberately without flavour, and I think saying that orwell was attacking this-or-that ideology misses the point of the work and detracts from the horrific simplicity of its archetype.
Well I was under the impression it was suppost to be satiring hypocrisy with that flavor