Sorry, but this isn't legitimate film criticism. 

There are film industries in most nearly every country and in the age of digital delivery films from all of those countries are readily available. Countries and filmmakers will tell their own stories, the diversity you seek is in all of those stories from various countries and continents.

If you choose to be intellectually lazy and only expose yourself to releases from a handful of western countries, you don't get to whine about what you see within that shallow pool.