I'm not accusing anyone here of being antisemitic.
Rather, I object to the trope because it's based on a misunderstanding of the nature of capitalism that is shared by many on both the political left and the political right.
That is, it assumes that the current economic system is a neutral tool and that any injustices and unfairnesses associated with it are the fault of bad actors of one sort of another -- banks, benefits scroungers and welfare queens, irresponsible trades unions, and so forth -- which can be remedied if only the bad actors can be controlled and restrained.
My problem with this analysis (if that's not too polite a term for it) is that it ignores the way in which economic relationships determine our social reality -- it doesn't ultimately matter how altruistic and unselfish the owner of a business is, since if he's going to stay in business then he has to do it by appropriating the surplus value of his employees' labour.
Similarly, the directors of banks, wealth management and pensions funds and so forth, are no more free to set the goals for their efforts than are their more junior staff -- they have to act according to the dictates of capitalism to increase the wealth of their companies and investors.
That's not saying that they can't, or shouldn't, have any criteria in mind other than the pursuit of profit but if they don't match up to the sort of return on investment their competitors are offering, then before too long either their customers will desert them for less socially-minded institutions or they'll find their investors and shareholders replace them with people whose agenda and goals are more in line with those of theirs.
That, incidentally, is the big argument in favour of government regulation of things like environmental issues, employee protection, anti-slavery laws and the like -- not because businesses are necessarily blind to these issues but because, without mandatory minimum standards, whole sectors are at risk of a race to the bottom, led by the least scrupulous.
So blaming the people in charge of the supposedly neutral system, and suggesting that, if only the right people were in charge -- including the state -- then things would be a lot better is a mistake, at least to my mind, since it ignores the fact that no one is, or can be, in charge -- the world economic system isn't directed by anyone, any more than is the weather.
It's all just people acting and reacting, in ways that seem good to them at the time, in response to what other people are doing.
So when left-wing governments try to remedy the unfairness and injustices of capitalism by trying to change the people managing the system, or by taking whole industries into public ownership to be managed on behalf of the people and it doesn't work, then before very long they start blaming the bankers and currency dealers for sabotaging things, while the bankers are simply doing their job of responding to what the markets and other banks are doing.
And when people start blaming international financiers and bankers, or "neo-liberals" or whatever for being citizens of nowhere, blind to any national interest and visiting suffering and inequality on the innocent workers by sabotaging government plans for their own selfish ends, then, at least historically, pretty quickly they start blaming the Jews.