You know, it's really really funny... G5 has all the three tribes of ponies hating each other, and living in a modern setting centuries after FiM. I wrote about this very ideas years ago, before G5 was ever conceived of, in a story where Celestia and Luna go on a vacation incognito to the earth pony town of Coltonville, and find pony hatred and paranoia, as well as a conspiracy against unicorn and Pegasus foals.