True communism in a country is impossible.

You can have socialism, or anarchy, which we've seen before, but communism cannot function in one country alone, unless said country is completely and absolutely self reliant.

A major part of communism is internationalism, which is why socialist countries had the Comintern. (Communist International). Besides a political/social system, communism has a strong basis as an economic system. You can't apply communist economic system principles to the capitalist market.

To my knowledge, no existing country is self reliant to the point that they can completely cut off trade with the rest of the world. USSR didn't do it, China didn't do it and they were the two biggest countries at the time.

That, of course is all a very surface level ELI5, and if you want to ask something more specific or in depth, feel free to.

Realistically, it would look something like how the Anarchists organized society in Catalonia during the Spanish Civil War, or how Rojava is organizing today with communal federations. Anarchism sidesteps the inevitable authoritarian regime that various Marxist theories have by not installing a 'temporary' vanguard state that quickly becomes autocratic and dictatorial, they just jump straight to decentralizing power immediately by giving it to the people.

Well, it is feasible. You just need to give people replicators and free living space, and they will eventually learn to use their skills to enrich the world we live in. And boldly go where no one has gone before.

With capitalism we just outsource the death to 3rd world countries.

Hey, I can think what happened in Eastern Europe was just authoritarian dictatorships, backed by Muscovite colonialism & branded as communism just the same as what happened in parts of South America was just authoritarian dictatorship, backed by American imperialism & branded as laissez-faire capitalism.

Also I can think communism has never actually been tried, and that it’s functionally impossible (therefore people should stop advocating for it).

Can't critizise something that has never been tried! Also we already got a comment critizising capitalism as a counter argument :D

I mean they violated some if tge main principles outlined by Marx, like the other states, who almost all followed the lenin-stalin-model, so yeah. Prove me wrong.

They are though. China, Vietnam and Cuba are all pretty drastically different and they are all communist countries.

Nah, that's just wrong. You can compare yourself in other ways than how much fake money you earn. Fun thing is: truly communistic society would mean easier work for most people.

And communism does work in small scale enviroments. Families, cooperatives, tribes. Sometimes neighborhoods.

This whole "Sounds great but won't work" rhethoric is just what the ones that would loose their power in communsim want you to think. If you dig into it you will see, that there were and are a lot of efforts to discredit the idea.

That's funny because I do easy work for a great paycheck yet we have a harder time hiring than in my previous job which didn't pay as well and was harder.