We have seen authoritarian communism that regressed into autocratic nationalist imperialist communism. We have also seen authoritarian communism that has shifted into state capitalism. Just like there are many variations of capitalism that we have and have not seen, there are likewise many of socialism and even communism that we have and have not seen.

Do you understand that even just in the category of communism, there is an enormous gamut of different approaches, of which you only seem to understand a very specific one? You understand that the bolshevicks, even under Lenin, murdered the "competing" communist groups, effectively regressing right back to authoritarianism and what would inevitably degrade into Stalinist autocracy? And so that even the, mischaracterizing, claim that "communism" went bad is basically nonsensical?

Do you like shovels? What an inane question. Capitalism is a tool. It works for some things and not for others. If you want to achieve the things it doesn't work for, you don't use it and use a better suited tool instead.