also, who cares if the border is people's fucking property boundaries. those should be borders in any case, and are not because of government.
can you shoot a burglar trying to break into your house in germany?
and why not? they crossed a border without permission.
the government do not have a lawful right to claim jurisdiction over my property, they have no lawful rights at all, they are a fiction that people believe in. right now in most of the world governments are actively attacking the people within their "jurisdiction" and are destroying the fabric of society. along with all the activist NGOs and judges who are protecting the "rights" of the plunderers and marauding hordes of psychotic loons.