"Or are you saying all those other systems are capitalist then, because that's what they do, trade.
pffffft, breathing itself is trade."
As much as Marx HATED capitalism, there just is no way that any Marxist can ever be rid of capitalism. Capitalism can exist in Communism, et. al. if as nothing else other than a black market. In addition you just cannot stop people from bartering with another person.
But Communism et. al. demands that the government controls the economy. A free market cannot exist when any person, group, organization or government seeks complete control.
As it was pointed out to me, by an anarchist, years ago, a free market cannot exist side by side with any kind of government because even if the government attempts to collect any kind of tax the market ceases to be free.
However, a government with minimal taxation and minimal controls on businesses have have a mostly free market. The more taxes and regulations the less free the market is until you get to a government system that seeks total control over the market and it no longer become free (except in the shadows, i.e. the black market)
"Nope, Fascism and Nazism are called Fascism and Nazism and not Socialism or Communism because they are both quite the departure from it, as are so-called Communist countries themselves. Fascism and Nazism both very thoroughly embraced the bourgeoisie. By design."
Fascism gets it name from the Italian word fascio or bundle of sticks. A word that rhymes with maggot means the same thing in English but I cannot use that word without the ImgFlip mods punishing me.
Fascism's symbol under Mussolini was a fasces or a bundle of sticks which surround a war hammer or axe. The idea was that everyone was all working together as one or a collective. Just like socialism. It is so much like socialism that it is just a variation of socialism.
Nazi is an acronym for "Nationalsozialistische Deutsche Arbeiterpartei " which in English is National Socialist German's Workers Party. As much as the left want to call it right-wing, it's not. The adjective "National" does not alter the meaning. It is just socialism with a strong national identity. The word "national" doesn't even stop it from being international because Hitler wanted to rule the world. Once Hitler got power, he ruled as a megalomaniac not a socialist, which is normal because socialism gives too much political power to one person. It's why socialism will never work.