You probably never imagined you'd hear me admit that government can be useful. Of course it can. Many things you don't have the right to use, in the specific way you are using them, can be useful.
Jeffrey Dahmer found knives and big cooking pots useful. He didn't have a right to use them as he did, but they were indisputably useful for his purpose.
So, yes, government can be useful. But it’s always cheating to use it.
If you can't get what you need or want through voluntary exchange, it is useful to have a tool for forcing others to go along. That tool could be a gun or a government.
The thing that makes the government the worse tool to use is that your victim isn't generally forced to buy the gun and ammunition for you to use against him. Not unless you work for government.
No one using a gun to force compliance can pretend to be the good guy, unless they claim what they are doing is "the law". In this case, the real weapon being wielded is government; the gun is just jewelry.
Government can be useful, but if that's the tool you have to use you should probably stop to think if you have a right to do what you're doing. And if you do, why are you reduced to cheating?
Thank you!