Excuse me, are you whining about Marxism not making the first square together with physics? That would be a rather peculiar statement, but you present it as if it were self evident. Just in case you are shallowly serious I may respond that physics does not acknowledge social reality and admittedly it can hardly account for organic life. Marxism, in the common understanding is a scientific theory of social reality. The fact that it is an economic reductionist theory of social reality does not mean it is physics.