I’m just going to leave this random link here: https://www.imdb.com/list/ls003889355/
1. Once Upon a Time in America
2. One Flew Over the Cuckoo's Nest
3. The Great Dictator
4. Lord of the Rings
5. Chinatown
If there's one thing you can't associate Charlie Chaplin or Jack Nicholson with, it's Hollywood.
Number 9 on your list is famous non-Hollywood filmmaker Alfred Hitchcock.
That’s not a list of non-American films, it’s a list of non-American directors.
To answer what I assume is your every so snarkily delivered point: Yes, about a third of the directors on that list ended up successful in Hollywood. Does that mean international films are bad? Probably not! Does it maybe mean even Hollywood recognizes that there is a lot of international talent, and very good international films being made? Probably yes?
Nicole Kidman and Chris Hemsworth, say, are as Hollywood as it gets.
Heck so is Salma Hayek.
The point is that intl can’t compete with Hollywood because Hollywood is widely appealing and relatively very good.
It doesn’t matter that Alfred Hitchcock became a naturalized US citizen.
American movies are popular globally not because they're American but because they're so damn watchable/enjoyable/varied.
Granted that becomes less true every year, since Hollywood appears to be broken. Other countries haven't figured out how to pick up the slack though. 1994 Hollywood will likely never come again.