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Blockchains don't scale. But that's a feature, not a bug.

Great protocols are built in layers.

You have decentralized instant settlement for an average of 0.005% even for micropayments with the Lightning Network (another protocol built on top of Bitcoin). That's orders of magnitude away from the settlement time and resilience of the current payment networks.

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This might be the first time I've heard the argument "it's great that my project is shit because a lot of great things are layers on top of shit"

You missed the point. The IP protocol doesn't scale! Ethernet MTU is just 1500 bytes how are we ever going to transfer a movie over the Internet!

Ethernet does not need to carry the whole movie in one packet. If it does the job of delivering the MTU to the host on the other side of the cable, it's good. Websockets can be figured out somewhere else. The IP stack is not shit because each layer does just one thing, it's good because of that.

But hey, time will tell.

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