Won't wash. The evolution we are discussing concerns common descent of animal species. The "Evolutionism" you seem to be referring to is the social theory of cultural progression developed by Edward B. Tyler and expanded by Lewis Henry Morgan in the late 19th century. From here:
I think you're reaching. At it's most basic level, the word evolution can be defined as "change over time." The Theory of Evolution we have been talking about is a part of biology specifically concerning common descent and speciation. This is a social theory, and while they may exhibit commonality in terminology, the meanings of the terms are dependent on the context.
Not to mention that the whole communism/evolution connection seems rather inconsistent from the get-go. "Survival of the fittest" is hardly a rallying cry for universal social and economic equality. If anything, it seems more appropriate to capitalism, if not outright anarchy.
Interesting, how when comminality exists in fossils etc. evolutionists are quick to draw lines and conclude relationships. Then suddenly they abandon this when it comes to commonalities of terminology.