[Sherman Logan]

The foundational epistemological position of all ‪‎Leftist‬ thought is Marxist dialectical materialism.

I am not disagreeing with a lot of what you say. Merely trying to point out that your lede sentence is simply not true.

Marx is the dominant root of modern Leftist thought. But he is most certainly not its only source. Which is what you said.

For instance, in the late 19th and early 20th centuries various anarchist ideologies competed strongly with Marxism. And many of them hated Marx, and Marxists returned the favor. But the anarchists were indisputably Leftist.

See the infighting in the Spanish Republic.

[GeronL]

Leftism did not start with Marx. It preceded him by several thousand years since one cave man used force to suppress another cave man. Many “Utopian” movements existed around the world and in the US before Marx was around I think.

[walford]

“Marx is the dominant root of modern Leftist thought. But he is most certainly not its only source. Which is what you said.”

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Fair enough. I will correct the Facebook version [which can be edited.]