the similarities among the different

I was watching a report on AlJazeera earlier on about Pol Pot and his party Khmer Rouge that led Cambodja from 1975-1979. As I listened to the communist methods Pol Pot implemented and its totalitarian way of ruling I couldn't help but notice some of the similarities they shared with Somalia's Siad Barre regime. Though the atrocities committed by Khmer Rouge far outweigh the ones people associate with Siyad Barre, he too implemented national rebuilding schemes done by the people. It was called "iskaa wax u qabso" (do it yourself). I remember tales from my grandmother as she told me how people build the schools they would sent their children to, the mosques they would pray in, the farms that would produce the food they ate and police stations that would safeguard their security. The country's social institutions were revived by the very people it would serve. I'm guessing Pot had a similar ambition but instead failed to research the necessary groundwork on how this would manifest.This led me to look into why some countries were drawn by communism but subsequently turned into failed or plagued states such as the case of China. The ruling elite of China rejoice in the name of 'The people's republic of China' but the majority of those whose name is manifested in their country title continue to suffer from lack of basic human needs such as a fair minimum wage and working hours, freedom of speech and what religion to follow. This country thrives as one of the largest if not the largest exporter of toys, cars, technology, games and clothes off the back of the suffering of its people.Communism in the words of its founder Karl Marx refers to a classless, stateless and oppression-free society where decisions on what to produce and what policies to pursue are made democratically, allowing every member of society to participate in the decision-making process in both the political and economic spheres of life. However I have yet to find a country that has adopted communism at some stage be it Somalia, Ethiopia, its father the Soviet Union or any other country that has remained truthful to implementing those policies.
In Somalia for example, though some attemps were made to negate this class based system, the Digil and Mirifle people were considered less than ordinary Somalis in the Siyad Barre regime and consequently didn't have the same rights as everyone else. I have to point out that this was not something Siyad Barre imposed but more a culturally rooted manifestation but I do wonder why the communist policies that were the base of Somali governance at that time weren't implemented to eliminate the existence of this culture.Many say communism has died with the end of the Cold War in 1991 but its influence still lingers around us globally.
So my question is to bring equality and justice into full existence in our world, do we need to reform and revive communism or does the solution lie in the complete eradication of communism?