The anti-democratic anarchists are so dangerous. They want to maintain property rights for the rich (enforced by a minority onto a majority,) but seek to abolish anything that would allow the public to properly redistribute wealth.
Nobody truly owns anything. Ownership (ideally) is something the collective group temporarily allows for to make transactions and day-to-day affairs faster and easier. All ownership can be reassigned at the whim of the voting public.
Voluntaryists who seek to abolish democracy altogether seek to undo centuries of struggle, advocacy, and progress. The rich owning everything while everybody is disenfranchised will just result in feudal society again where the masses must toil labouriously for rich land-owners. Inevitably, people will start seeking democracy again only to discover that racism, sexism and other forms of bigotry have all crept back in to such a pervasive extent that rights people already suffered for have to be won a second time around.
Thus, people must nip these anti-democratic, pro-elitist movements in the bud. One problem is that representational democracy has proven itself to be a total failure, (at least, in my eyes.) Thus, direct democracy alongside things like freedom of speech is a must at this point to avoid descending into another dark age.