It is limited, irrational and flawed. Left ideology is divisive and got lost en route because it doesn't recognize the fundamental interrelations between ends and means. It, therefore, requires crystal - like means to achieve it. Impure means result in an impure end. Ends and Means together span a vertical scale .
Life is ordered and so are ends and means that deal with it.
Reality lies on the vertical axis and can not be classified into right and left. Left concentrates on the horizontal plane and is unable to look up so that a good part of reality eludes it .To deal with reality, means are important. Ends can not be separated from the means. I would say means are after all everything. As the means, so the end.