State control of anything only has a chance of working if the state has completely free and fair elections so that incompetent and corrupt officials can be removed.
You want free and fair elections, but also want the ability to remove individuals from the election process.
So what you want is not free and fair. It's only open to those not considered "incompetent" and "corrupt", and those that are, are either ignored or completely removed from the game therefore basically rigging the elections.
Apart from that, if we were to apply those criteria to the people currently running for president in the USA, even those that stopped their campaigns, there would be no runners.
Communism doesn't work. Even Vietnam's economy suffered under it until they switched to capitalist policies, and people suffered from famine, oppression to the point that many people fled to countries like Cambodia, Malaysia, the Philippines, and so on, and many were forced into "reeducation camps" (concentration camps).
One of the very, very few countries that has done (relatively) well under communism is China, though in that country you have one party controlling the country making elections useless, stupid laws like the now-defunct one-child policy, and its economy does not follow communist but socialist standards. The country is heading towards socialism anyway, with privatization becoming more and more common over there as people have increasingly been resisting the communist party over the years.
In many countries that have attempted communism, citizens get the short end of the stick. It just doesn't work as a social, political or economical system.
