I thought it was really interesting in the Anti-Oedipus where the discussion of how "everybody wants to be a fascist" takes place (xx). The ultimate goal seems to be to "forget about our egos" which would supposedly rid of all conflict such as the opposition of the desires of singularity vs. collectivity (xxi). These "collective expressions of desire", however, could possibly be argued as an aspect of Fascism, something that Deleuze/Guattari clearly abhor.