Open source has nothing to do with it. All the things you’ve mentioned is made for the good of the people. Crypto is not. Crypto is for the rich to get richer and exploit the poor.
Anonymous payments is not a good thing and throws any sort of fraud protection out the window. It’s just for libertarians trying to avoid taxes, and criminals trying to launder money. It’s not beneficial to hide from the government that you bought a extra fatty pizza.
Also nothing about Crypto is grass roots whatsoever unlike what you listed before. Crypto took off because it was inorganically and heavily pushed by very rich people knowing they can make a large profit.
Your instance is literally an archaic PoW token that causes a tremendous amount of harm to the environment and wastes energy so you can hide buying drugs. That’s not including the fact either that you have to go through exchanges who require identifying information to withdraw into non monopoly money.
Centralization is not always bad, this is libertarian logic.