Savers would at least like a real return on their savings. Real rates come from the real economy. Long-term real interest rates will increase again when the European economy has re-established a sustainable dynamic. Getting back to banking supervision in the hands of the ECB.
Given the asymmetry in power across the world, such an approach to negotiations is always going to result in a skewed system, biased towards richer countries at the expense of poorer ones. Fair and open trade and increased market access for poorer countries to richer ones is essential to reduce the build-up of imbalances.