I’m a bit confused as to what you are getting at. The article “On the Jewish Question” is not some obscure work of Marx. It’s the starting point for anybody wanting to better understand Marx’s relationship with Judaism. It’s also not the earliest writing of Marx either. You make it sound like this is the starting point for all of Marx’s later thought which it isn’t. There are earlier works of Marx. Why not start with “Critique of Hegel’s Philosophy of Right” or the “Economic and Philosophical Manuscripts”?
You make a claim that Marx’s “hatred” of businessmen stemmed from his hatred of Judaism. Can you provide evidence for that claim? I don’t see it in “On the Jewish Question”. It’s interesting that you basically want to sum up Marx’s philosophy by just petty hatred of business people and not actually get into the weeds of the influences on Marx. There were primarily three, as Lenin said:
“Marx was the genius who continued and consummated the three main ideological currents of the 19th century, as represented by the three most advanced countries of mankind: classical German philosophy, classical English political economy, and French socialism combined with French revolutionary doctrines in general.”
Reading one work of Marx and then deciding that this is how he developed his ideas is silly. Maybe pull out a decent biography of Marx and get a better understanding of his life, influences and ideas.