To get back to the OP (apologies for contributing to its derailment): of course communism is possible. That a community can control production, and produce things for need and use and not for profit, is not hard to imagine. The word “communism” is so loaded, however, as to make a discussion about it rather tricky.
Has it ever been tried? Not in modern history.
Has capitalism (in the sense of Adam Smith or laissez fair) been tried? No.
Both ideas have been used as a guise. For what? Well, look around. Look at history. Look at the distribution of wealth and power. Whether it be the USSR, China, Cuba, Sweden, the US, or Japan — nowhere do you find capitalism or communism. All you find is varying policies of what C. Wright Mills called the “power elite.”
So yes, it’s possible. But for now it’s a pipe dream. Similar to the pipe dreams of the couple “libertarians” (i.e., unwitting corporatists) we have here who drone on about abolishing the state. They could very well be communists for all we know! All it really serves as, however, is an obfuscation of real world issues.
So take healthcare. What’s the strategy for better healthcare in, say, the US? “Abolish the state” people will be violently against any government intervention. It must remain in the hands of the private sector, despite some of the worst outcomes and despite what other countries do (national healthcare). Result? Poor people suffer and die unnecessarily.
Or take guns. Can’t have government regulations, because they do everything wrong, and we must abolish the state. So we mustn’t impose the undue burden of going through training or filling out some extra forms before we place an assault weapon in the hands of a lunatic. That’d infringe on “freedom.” Results? More mass shootings than days in 2023. People suffering and dying, unnecessarily.
So once again it’s just a cover for those in power. In this case, insurance companies, private healthcare, and gun manufacturers. They don’t want the government to interfere, so it doesn’t happen. And our “libertarian” friends, and some communists as well, who think they’re being so very principled and consistent, are simply a new kind of useful idiot.