'Marx was an atheist; Dawkins is an atheist; therefore Dawkins is a Marxist' is idiotic. And being a leftist does not make one a Marxist. Words have meanings; their purpose is not simply so you can fling ill-directed insults.
I have no further reason to assume anything you write bears more than accidental relationship with the truth. Shame.
As for "shame" I can only laugh. Your response was pathetic.