Will this ever die? None of the societies that people point and scream about were actually communist in any real sense. They were just random flavors of authoritarianism wrapped in incoherent bits of Marxist–Leninist and/or Maoist ideology, both of which are the furthest thing from any of the popular left-communist and anarcho-socialist movements that exist in the US.

To put it in perspective, the Soviets literally rolled tanks on striking union workers and students in Hungary and killed thousands of people because they were (to heavily summarize) the wrong kind of communists. This is where the phrase "tankie" comes from.

That's an obvious strawman. Regulation against market failures is not equivalent to central planning.

We've also tested it in the capitalist societies.

There is a reason why regulations exist and you could probably read up on history to find some of them

Post-communist countries have highest rates of home ownership. It seems like it worked.