A lot of time is spent arguing that the orthodox-Trotskyist desciption of the USSR - as a "degenerated workers' state" (and its command economy off-spring as 'deformed workers' states') - is incoherent. This is entirely fair no doubt, if of limited significance outside Trotskyist debates. (It seems that we should designate Soviet Union a "degenerated workers state" up to 1928, so there appears to be not so much of a theoretical principle at stake (450))
Whether it's at all useful to consider, as did Tony Cliff, the communist command economies as 'state capitalist' is another matter. Davidson seems to accept the Brenner definition of capitalism as involving a process of competitive accumulation that forces both owners of capital and direct producers to continually drive up productivity (400). This definition appears almost entirely inapplicable to communist command economies. I can't see much use in defining such regimes, even though certainly committed to developmental industrialisation, as capitalist in any form, still less products of bourgeois revolution.
The theory of bourgeois revolution is not … about the origins and development of capitalism as a socioeconomic system but the removal of backward looking threats to its continued existence and the overthrow of restrictions to its further development. The source of these threats and restrictions has, historically, been the pre-capitalist state, whether estates-monarchy, absolutist, or tributary in nature ... .
In no bourgeois revolution did the revolutionaries ever seek to rally popular forces by proclaiming their intention to establish a new form of exploitative society … but did so by variously raising demands for religious freedom, representative democracy, national independence, and, ultimately, socialist reconstruction ... (510)