Depends on your worldview doesn’t it? For me, having a transaction system that isn’t controlled by either my own government or corporate America is useful. If it’s not useful to you then you don’t have to use it.
it doesn't really maximize individual liberty, ultimately almost anyone would end up with less liberty in practice, except for people choosing to centralize power i.e. rejecting anarchism
The rest of the people in your country don't want it because if your money is stolen, there is no way to get it back. If it's detrimental to society, I will make laws against it. That's how government works.
If the money was obtained illegally, the government can get the money back for the victim. This is not true for unregulated international money transfer. That's why North Korea and Russia like to promote cryptocurrency usage among Western rubes.