The push should be to reduce population densities
But we need the population to be in compact areas where they can be more easily controlled. If you spread them out to reduce the density then, well, how will the emperor maintain control? So spreading them out is not the answer. But that only leaves extermination by one means or another. There are many ways to do this, viruses being one of them. If it necessary for the health of the state they may try the old German approach - conservatives first, of course.
Alternatively, since the dead cannot get up out of their graves but still manage to vote, we can turn the question around. If a live person identifies as dead, under the new rules they are counted as dead for purposes of the census. That will also drop the density figures. Thus, conservatives that identify as dead will not be packed off on the liberal’s cattle trains (for further processing) since they are already dead.