I can see where you are coming from, but I'm afraid I don't agree with your conclusion.

I can't see the republic lasting more than another generation, with or without Caesar. Given that, and given that he did do the bare minimum and was a capable administrator, I do give him a modicum of credit.

Besides which, I think conservatives are always going to find someone to blame. If not Caesar, then it would have been those dastardly Gracchi, nothing but populist rabble rousers with their proto-commie ideals. People are always going to use/pervert history to fit their agenda. As an example, the third Riche literally held up Frederic the Great as the idea Aryan man, despite him being a homosexual Francophile. (And yes, I know I just Godwin'd myself)

I'm not trying to pretend he was some great altruist, or paragon of virtue- god knows he wasn't. And I think your reading of history is valid. Just that I am far more sympathetic to his position, given the realities of the roman Senate in his day, and the way that the established order has always presented the version of history that is most favorable to them.