I will try to make my pieces shorter, I never intend to launch into an essay, I just get carried away sometimes. Writing is my joy.
But what you say has some truth to it. I, however, believe that there is no such thing as a selfless act. I believe that no matter what choice a human makes, it will always be made to benefit themselves. Whether it be to avoid guilt, achieve pleasure, or to enhance the ego. All humans are intrinsically selfish and the id (unconscious instincts) always reign supreme. As you get to know me and my opinions, you will see that I am not your typical leftist. I often find myself straddling both sides on many issues.
Rather than writing about Marxist theory, you might be surprised to find me quoting Adam Smith and the importance of 'the invisible hand of the market', a theory which highlighted the importance of recognizing individual selfishness when considering any society and its economy. What I will say, however, about the difference between 'left' and 'right' is that we have different ideas about what freedom means. The right believes freedom means limited government intervention on matters concerning the economy. In other words, it's a capitalist's right to exploit others and enrich themselves. I personally believe this is a fallacy, as you only replace one ill with another. I see absolutely no difference between authoritarian governments and imperialist profit-driven companies like Apple. The market is essential in any society, but what we currently have is a market on steroids speeding towards self-destruction, and I further believe it is society's duty to step in and 'democratize' capitalism - in the name of freedom, rather than against it.
Anyway, before I get tempted to launch into a critique of the global economy and how it shackles us all to debt and finance (and thus inhibits the rights of the children we love by commodifying the human body), I will end it here. Thank you for being courteous.