Los Angeles is not "outside of the US". Besides, less than 20% of that trip is in USA airspace. Slow down when you hit North Dakota...
https://www.greatcirclemapper.net/en/great-circle-mapper.htm...
https://www.greatcirclemapper.net/en/great-circle-mapper.htm...
Non-Americans who wish to complain about USA have a broad range of topics from which to choose; there's really no need to complain that USA regulates the operation of airlines in USA airspace.