What is the specific drawback of pseudo-anonymous permission-less stuff? > trying to be a separate currency. None of the serious crypto projects I am aware of

What is the specific drawback of pseudo-anonymous permission-less stuff? > trying to be a separate currency. None of the serious crypto projects I am aware of (which are Bitcoin, Ethererum and its L2's basically) claim to be a currency. Bitcoin is an asset. ETH is a currency only for the ETH ecosystem and does not claim to be something along the lines of a popular definition of currency.