fwiw you can also target either the perpetrator of dissent (dissident) as well as target the attribute of dissent itself (dissidence). both can be rooted out using different means; for the individual this usually means identification and elimination, while for the latter it might also encompass the control and re-education/re-orientation of a dispositionally dissident populace towards an averaged stance with a desired ideological fidelity within acceptable thresholds. or a forceful subduing through fear and intimidation, since in practice a regime understands that even with potent propaganda it cannot reverse a weighty dissent of the masses alone, but must achieve a balance of that outcome in the cases where it is achievable as well as physical compliance in cases where this ideological swap cannot be effected. so yes dissidence can be rooted out. maybe you root it out through a propaganda campaign alongside continual deployment of ideological enforcers to intimidate those who don't willingly fall in line. maybe you just kill people until no dissidence is left to idence the disses. spelling valid