Even mandated.  Such as our present juncture that calls for the rebuilding of WW2-style internment-camps to house - not FDR's Japanese-Americans, this time -  but all known antivaxxers.  We have a right to destroy those who would destroy us - and if there are too many to simply destroy out-of-hand, we have a right to exile and imprison and isolate them so long as deemed necessary.  Something very much like a powerful state will be required for this job - but sometimes sheer survival trumps pristine-pure anarchist politics. Doesn't anyone watch ' Alien ' any more? We quarantine for good reason,  believe it or not.