>This isn’t to say that the US should care less about a non-US person, but that the issues with violation of state sovereignty (aka Westphalian sovereignty) are too grave to advocate action.

If this is the issue, the US should not start/participate/assist in wars that violate international law, should not run a drone strike program that allows an arbitrary death sentence without any trial, should stop their policy of regime change and interference in foreign governments, and the countless other ways we usurp sovereignty.

In theory I completely agree with you, but this bridge has long since been crossed, and I doubt that it is the reason the media only cares if there is a tie to the US.