That's not my logic, it is your caricature of my logic. My logic is that sometimes the right is very dangerous and it is important not to make the same mistake Thalman made. The Nazis were NOT "nominally" right wing and the Communists were stupid and reckless in the extreme for regarding the SDP  as the greater enemy or for the delusion that they could win over the "populist" SA.

As impressed as I am by the power of saying "fuck off and die", I have to ask what it accomplishes. A lot of what passes for "left" thought these days seems to boil down to "we'll give them the finger until they respect us".

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The big demonstrations in London and Washington against the US attack on Iraq a few years ago offer an exemplary case of this strange symbiotic relationship between power and resistance. Their paradoxical outcome was that both sides were satisfied. The protesters saved their beautiful souls: they made it clear that they don't agree with the government's policy on Iraq. Those in power calmly accepted it, even profited from it: not only did the protests in no way prevent the already-made decision to attack Iraq; they also served to legitimise it.
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- Zizek.