It has some weak assumptions on what the world might be under anarchy and also has too much assumptions that it is only government that causes all the violence.
Government is the only legitimate source of violence. There is a theory about it by Weber. It is not a weak assumption, although it may be controversial.
https://en.wikipedia.org/wiki/Monopoly_on_violenceIn other words, Weber describes the state as any organization that succeeds in holding the exclusive right to use, threaten, or authorize physical force against residents of its territory. Such a monopoly, according to Weber, must occur via a process of legitimation.
Government has the monopoly on the legitimated use of physical force. You cannot fight this idea, it is a fact.
Ofc it is not the only source of violence...
Bitcoin used to be a currency which only tech guys and libertarians cared about. After the bull run, leftists and state lovers began to use it, usually seeking for money, and don't care about it ideology anymore... Then people started crying about energy costs and so on, which are not bitcoin principles, objectives, purposes or concerns of it. And shouldn't be.