" I've already pointed out a connection which Marx himself pointed out."
And I have asked for specifics as to where communist ideology has taken natural selection and descent with modification as parts of their ideology. And you still have not explained how Darwin influenced Marx in 1848 with a book that appeared in 1859.
Granted, I understand the timeline. If true, it seems that Marx could not have read Origen of Species before writing his book.
However, it does not seem possible that there is NO connection between evolution and marxism as Marx himself says in the quote that evolutionary ideas are the basis of natural history for his views.