What is Marxism? A Gentle Introduction.

Marxism is a framework for understanding society through the lens of class struggle, historical materialism, alienation, and surplus value, offering a critique of capitalism and advocating for systemic change toward greater equality.

[agustinbernal]

Abdullah Öcalan founder of the Workers Party of the Kurdistan wrote that the most revolutionary thing a worker can do is to become concious of his/her condition and NOT TO PROCREATE.
I think everything in human history comes down to demographics not only economics. Marx took a picture of his time, but history is a movie, not a picture.
What would have Marx said about nowadays proletariat around the world not wanting to have kids (prole in latin means kids, proletariat, the ones who have kids)?