Opinion of cultural appropriation?

[Oldiesfreak1854]

Neutral.  And nobody does it better than Japan.

Personally, there's something I don't get about cultural appropriation.  Liberals seem to think it's great when we do it in America--it's "celebrating diversity."  But when other countries appropriate elements of American culture, it's considered a threat to their traditions.  How is eating at McDonald's or driving an American auto brand any more of threat to foreign countries than eating "ethnic" food or driving a foreign car a threat to America?