I believe that an individual is responsible for their own safety and security of their property, the Supreme Court has already ruled multiple times that the police aren't responsible for a person's safety.
With that being said, the concept of domestic terrorism is a hard one to nail down when it comes to home politics and citizens. The definition is left to the power exercising the authority over the domestic terrorists themselves. I don't trust the government to be able to aptly define a domestic terrorist without it being a means to an end.
Adolf Hitler painted the Jews as domestic terrorists.
Theoneste Bagosora painted the Tutsi as domestic terrorists.
They were both national powers. In the Portland instance, both the state and local leadership do not want federal authority involved, despite whatever property is involved it's the state and local responsible for the damages so let them do their thing.
So hence, abducting citizens with the Border Patrol Tactical Units in a state that isn't on a border and doesn't have a major port near Portland is an overreach.