The ideal of communism, maybe. Yet every country that called itself communist became authotarian. Why is that? Evil tongues might suggest that the ideal of communism simply fails to prevail when confronted with reality.
Reality being imperialist countries bombing you back into the stone age for not licking their boots.
Stuff must get done to achieve ideals, building a strong state to defend from imperialist threats is basic marxist theory, literally 101 stuff. Marxism is built on materialism not idealism.
No country has claimed to have achieved communism. Many other places have tried but it’s usually crushed by capitalist or sometimes even by states claiming to be socialist. It’s also a really simple and tbh ahistorical explanation to claim that communism didn’t work simply because “it was confronted with reality”.
No country has claimed to have achieved communism
That may be your interpretation of that matter. But going with your interpretation, why is that? Maybe because communism fails every time anyone tries to make it a reality?