Copyrights, parents, & trademarks are covered by international treaties.
The Greenland nonsense should prompt Europe to use the nuclear option: they should threaten to stop honoring U.S. patents and copyrights. That would quickly educate Trump backers like Larry Ellison and Mark Zuckerberg cepr.net/publications...
cepr.net
Time for Europe to Use the Nuclear Option: Attack U.S. Patent and Copyright Monopolies
Trump’s push to seize Greenland includes $75 billion in tariffs that hit U.S. consumers, while Europe could respond by targeting U.S. patents.