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I think you missed a step:

metal coin usd -> paper usd -> digital usd (closed, permissioned system) -> crypto usd (transparant, permissionless system)

The jump is a lot less between digital and crypto should be small.

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true, revolutionary (compared to even digital usd) as in It shouldn't require a third party (aka bank etc) for 2 individuals to transact.

No bank involved, but for every transaction you burn down an unspecified amount of the Amazon rainforest. But hey, you win some, you lose some.

You always need a 3rd party for two individuals to transact. It's banks for dollars, miners + the whole infrastructure for crypto.

In principle, miners or the infrastructure maintainers could be forced to never mine your transactions (well, transactions to/from particular wallet IDs), by the way. It would be of course harder, since your money is in a single bank, but all miners would have to agree to the ban for it to work.

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