Exiting the EU and setting up their own currency so they can control their own interest rate to limit capital inflows that caused the over-spending and malinves

Exiting the EU and setting up their own currency so they can control their own interest rate to limit capital inflows that caused the over-spending and malinvestment in the first place would be a serious structural reform I would like to see them to undertake. The last default wasn't sufficient in cleansing the situation, most of the debt was rolled over only with new terms. The previous GDP high was only because of excessive capital inflows causing malinvestment and overconsumption - it would be akin to your bank lending every member of your family including your children $1,000,000 at 0% interest rate. Some of you may spend it irresponsibly and they would be the ones who spend the most. This increases your household spend making you look richer than you are. In the end the bank isn't getting their money back because you just don't have enough $1,000,000's left because it was spent on new clothes and expensive cars. Your family isn't going to ever get back to pre-crisis spending high, even given continued growth in your family's income, and especially not if you have to continue to pay interest on that debt.