I work in banking and am very well educated in finance. I can explain.

To simplify things, banks take money from savings and reallocates it toward investments through credit. Banks profit when the cost they pay to savers is low and the price they charge to investors is high.

The prices are based on supply and demand. Thus from a banks perspective, they always make the most money by paying savers in areas where the demand for savers money is low and the quantity of savers is high. The USA would count as this type of location right now. The bank also makes money where demand for investment is high but the supply of investment is low. China would constitute a location that meets this criteria.

This is why the global banking system is opposed to borders and wants globalism because the easier it is for banks to take savings from anywhere and shift it to investments anywhere, the higher their profit. A bank's profit interest does not align with any single nation's interest. Right now, China's interest overlaps and the USA is actually losing out due to the bank's interest but things could change one day for China also.

Now how does what the bank is doing impact the USA? Well, when the bank decides to throw American savings at China instead of America, that drives the price investors in America are willing to pay (the price of credit) up which reduces the overall amount of investment in the USA. The net impact of this is reducing the wealth in the USA, while increasing the wealth in China and increasing the banks profit.

Whenever people discuss the problems of the world through the lens of "Zionists", they almost always tend to miss the mark. Zionists aren't inherently bad and in fact Zionists have criticized international banking Jews before also because the interests of international banking Jews didn't necessarily align with the interests of Zionists. This is why you can get a situation where the left and Israel are fighting one another because the global Cathedral as one might call it IS NOT actually fully aligned with Zionism.

Here's a quote by Theodore Herzl who was the Father of Zionism. In this quote he is referring to banker Jews.

“There are among them a few persons who hold in their hands the financial threads that envelop the world. A few persons who absolutely control the shaping of the most vitally important conditions of life of the nations. Every invention and innovation are for their sole benefit, whilst every misfortune increases their power. And to what use do they put this power? Have they ever placed it at the service of any moral ideal – nay, have they ever placed it at the disposal of their own people, who are in dire distress? … Without those persons no war can be waged and no peace be concluded. The credit of States and individual enterprises are alike at the mercy of their rapacious ambition. The inventor must humbly wait at their doors, and in their arrogance they claim to sit in judgement on the requirements of their fellow being.” – Theodore Herzl (The father of Zionism)