Actually all you need to do is let people help themselves by taxing liquidity and giving everyone a fair share of the land on this planet. The moment money and land ownership doesn't tie people to specific economic hubs the idea of a class based society becomes ridiculous.
What am i missing here? There's plenty of free or almost free land everywhere including in rich countries. Just not where someone wants to live. Drive one hour from where the jobs are in any direction and you get almost free land. But people are leaving those places, not going there, for some mysterious reasons.
What do you mean by "taxing liquidity", i don't even understand. Negative interest on bank deposits? It's already effectively there for about a generation.
