Why must communist societies have authoritarian governments/dictatorships?

because those countries have a majority of neo-right conservatives, living in those countries, and the only way to keep those type people, in line, with out rebellions, all the time, is to use a very aggresive control, as in dictatorships, its the one boss, god, the big cop, to control the mes, of poor, the big fear broadcast, big brother, here in a so-called democracy, we use about a million cops, and another million military types, plus millions of civilian , want to be cops, and millions of so-called , righteous citizens, to patrol and keep the order, that they persive to be correct thinking, and conduct, and the best stage act of moral rightness, will destribute the funds, as they see is correct, starting with their friends, first, and this trickle down method, seems to run dry before it gets down to the slave of humble truth, who will actually do the real physical work, the dangerous work, the needed work , the actual lifting , the real struggle, the least pay, the real so called heros, but the credit will go to the leader of the best stage act, the cop god, the law maker, and the law inforcer, the wip caring dude