Thanks for posting old Karl’s quote. Saw it last week, possibly at another FR post (your’s?). Marx, as a German, actually provided Hitler with an ideological justification for his Nazi anti-Semitism theology.
That is one reason we say that Fascism/Nazism and Communism/Marxism are twin brothers of the same mother.
I've NEVER understood how the right wing and left wing somehow form a "circle" that eventually meets at some point.
Nope.
It's pretty much a straight line between total freedom (anarchy/libertarianism) and complete State control (leftism/socialism/Naziism).
There has never been a "circle".