Oh, I'm fully aware of the problems with our current economic system. I just don't see how toppling fiat currencies and returning to representative (or even commodity) currencies solves any of the problems. Especially if the process involves the full destruction of the state while maintaining our current notion of property.
Property only exists insofar as people are able to enforce their claims of it. Under the dominant economic system property rights are enforced by the state via the police and prison system. Without the state, you need to rely on the community to assist you in enforcing your claims. If you want to maintain an imbalance that they might not be willing to tolerate, you'll need a private army (i.e. share some of your property with people willing to protect you in return).
If you hold little to no property, you fully depend on others' willingness to share their property with you or you'll literally die (because even foraging would require accessing someone else's property if they have claims on the territory).
So unless those holding the most property (i.e. the extremely rich) either fail to secure their continued property claims (e.g. by having their army turn against them) or feel extremely charitable for no practical benefit to themselves, you still end up with extreme poverty and extreme wealth.
And honestly, once you have people like Jeff Bezos raising armies to assert their claims on a significant fraction of global wealth directly, you might as well call their claims states because this just feudalism without the mythology of the divine right of kings (yet).
Wealth inequality may be in part driven by fiat currency. But wealth inequality is an inevitable consequence of our understanding of property rights (i.e. enclosure and the commodification of essential life necessities up to and including access to drinkable water).
Abolishing fiat currencies and existing states may create a free market, but it will not abolish or even improve poverty. You can argue that a freer market is better (but again, this needs a better explanation than "more freedom better") but it does not logically follow that a freer market reduces poverty and wealth inequality (ironically most statistics claiming global poverty is massively decreasing do not account for inflation and thus do not demonstrate an actual increase in relative purchasing power).