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In my opinion:

The traditional financial systems you mentioned are probably the #1 reason why the world is at war, economies are in shambles and races and religions are at each others throats. They turn us against each other, create a boogeyman, and fund both sides.

Food riots

Until we de-fund them, and fix the way money works, we fix nothing. Decentralized, cryptography-based blockchains are a great start.