No it's not. I'm not the one who thinks that scientific theories can, do or should "support" (or fail to support) political theories. YOU are the one who thinks this. I have repeatedly argued and stated that arguing from natural science to political ideology is fallacious.
Also, I am not the one who thinks Marx was correct in finding support for his theories in natural science. I think Marx is wrong about this. YOU are the one who thinks that Marx is correct (in the particular respect of evolution supporting marxism) but you won't say HOW. I think his claims, and similar claims by other marxists, are utterly gratuitous, and supported by nothing at all (apart from the typical communist "argument by defintition," arm-waving and jargonistic "word salad").