Crypto is vast my friend. It is not a financial system per se. At its core it is tools for human coordination which, by necessity contains a financial system.
It is indeed an experiment but it's a little premature to say that it has failed. The cake is still in the oven.
It's true that plenty of crypto projects have failed. That's to be expected in a bleeding edge experimental space. People try things out and sometimes they fail. That's how it works. There are however, plenty of projects that are still going strong fueled by very talented developers working tirelessly to address all of your criticisms. It just takes time. This is complex stuff. It's the merging of cryptography, economics and computer science among other things. It's going to take a little while.
Found the not Canadian