First of all here's how jews got into banking: -
It was medieval Europe and a culture of anti-semitism ruled, as any other time and any place anywhere as always. Jews were denied a lot of work. Goldsmithing was something that is hard work and not very crowded aswell that it didn't have a guild, as most guilds would deny jews from being accepted and thus we're never able to perform jobs such as bakery, butchery, pottery and other stuff. So jews started goldsmithing. Gold and Silver we're also the standard currencies but impractical. So the jews started safekeeping people's gold as they could construct vaults with their smithing techniques and guarrantee a more safe way of storing it, they would issue a written statement claiming how much gold you have stored and with that you could pick up any amount of gold you had stored. After a while, people started using the written statements as payment (cheques) instead of directly using gold. Jews noticed this and also noticed that people seldom asked for their gold from the vaults. So they figured they could start lending out gold and invest it without people knowing.
After a while people figured out what the jews we're doing but also saw they we're making substantial profits on it. So instead of asking their gold back they asked to get a cut on the revenue accordingly to the amount of gold safekept. (interest)
And this is the most early and primitive form of banking known. So before you start blaming jews for everything (what you are thinking of is zionism; which are bastards indeed no more as radical islam or christianity). You should know that they have been outcasts of society because of their beliefs for a very long time, that they managed to actually create and fill the most profitable and influential positions known to mankind is not their fault.
Jews are not bad, Zionism is bad. And those two are worlds apart!
Don't blame jews because the USA stopped using gold pegged dollar. Don't blame jews for anything in that matter it's fucking disgusting and it only shows you don't know anything. Do some fucking research before easily using scapegoats like the jews.
You know where the witch hunt comes from? In the old days it was very normal for woman to brew beer, to monopolize this industry rumors we're spread and similar to how the nazi's portrayed and demonized jews they did that to ''witches'' (AKA woman brewing beer). Big kettles, brooms, big ugly noses etc etc.
And what do you get a century's long witchhunt backed by ignorant measurements such as can she float with a cinderblock tied to her feet and does she weigh more than a so and so. Lets burn her at the stake to see if she lives, cause if she does then she's a witch!
It's absolutely ignorant and exploitation of people's intelligence.