Marotta misses the point totally when he writes:
There has never been a true capitalist society.
By what standard? "Blank-out", as Rand used to say. What does his assertion have to do with the progressive's claim that there has never been a true communist state? Blank-out.
Then Marotta decides this all about a "deeper problem with childhood..." He writes:
That speaks to a deeper problem with childhood: everything comes from adults - food, clothing, knowledge... That is why the teenage and young adult years are important. They open the door to questioning everything and seeking truth.
That just makes no sense.
Progressives are the ones who defend communism (indirectly) by claiming that the evil acts and horrifying results from the communist states like those controlled by Stalin, Mao, Po Pot and others aren't really communism. And the claim is that if communism were 'properly' practiced it would be good - it would be the utopia that Marx and others promised.
Marotta then claims that there have been "utopian communities in California" and the teacher is just wrong. Does Marotta support communism as practiced in those communities? That is what it sounds like. Does Marotta fail to understand that a "utopian community" voluntarily functioning in a free society is NOT the same as forced communism under a communist state?
Marotta, as an anarchist, or former anarchist, or whatever his political position is has shown a fondness for progressive talking points in the past. And he implies a kind of moral relativity argument (Because, he claims, there has never been a true capitalist nation which somehow means that the teacher was wrong and there have been perfect communist nations. The form of his argument is that by pointing at utopian communities in California (but not communist nations), that he has discredited some argument or another. Me, I think his 'thinking' is too muddled to treat seriously.