Clearly you are in favor of Marxism vs. Capitalism according to your post, and I won't engage with you about this. The few examples where Marxism has been employed in the world absolutely refutes your position.

I will, however, teach you a little about how economics works, addressing your point 2, to "satisfy your curiosity".

Take two similar Jewish men of the same age looking for a bride. One lives in an Hassidic community in New York. Another has for some reason settled in Atlanta. Now, if all was equal, they would marry at the same age. But the New Yorker has a multitude of women to choose from, and Yentas to help him. He will marry at a young age as is normal for his community.

The Atlanta Jew does not have as many choices, as the Jewish community in Atlanta is comparatively small. If he is determined to marry within the faith, it may take him a long time to find a suitable bride. If he stays in Atlanta, he may marry outside the faith.

Economics explains it like this: We make our choices where marginal benefit meets marginal cost. Assuming the marginal benefit of marrying within the faith is the same for each man. The marginal cost (measured in time) is much lower for the New Yorker than it is for the Atlantan, so the New Yorker will marry at a younger age. The Atlantan has fewer choices, meaning his marginal cost is higher, and will likely marry later, or marry outside the faith.

This is economic theory, and the science of economics can test it by gathering data on marriage within and outside the faith in various communities. and the age at first marriage.

This is rock-solid science, albeit with the caveat that it is addressing human behavior, which has immense variance. It does not say that people do not marry for love, or money, or sex, or convenience or any other reason. It merely says that, on average, the Atlantan Jew will marry at a later age. The data supports this.

This is how economics works. Economics does not say that non-economic forces are unimportant in our decision-making. Economics does not say that the model will override other factors, say love. It simply tries to gain some perspective.

There is research on this. Check out studies by Evelyn Lehrer to start. And try and suppress the self-righteousness, OK?

Peace.