the SWIFT system and international banks such as IMF and World Bank are distinctly US institutions, designed over 100 years ago for the benefit of the western powers when they all still had control over much of the world. these institutions, which are necessary pillars of neocolonialism, must be made obsolete. The US maintains sanctions on a third of all countries on Earth, sanctions which only have the power to freeze assets and halt dealings only while these institutions remain the only way.
The US and EU have raised interest rates, shooting their own economies in the foot, but by doing this they massively increase the value of their own currencies against global south currencies, making it even harder to pay off their debts or to raise interest rates themselves and destroy their own economies in the process. This is the flow of money and development away from the poorest counties, to the richest.