That's because they're too damn weak to cause any problems for anyone else. They're small, they're scrawny, they refuse to eat plant matter which severely limits any civilizational development, and makes them more inclined to dine on their neighbors once fresh game can't be found.
Bosmer are probably one of the only types of Mer that aren't preoccupied with fucking with other races, generally.
They do sometimes have a tendency of going along with the "high elf" program though, to some varying degree.
That's because they're too damn weak to cause any problems for anyone else. They're small, they're scrawny, they refuse to eat plant matter which severely limits any civilizational development, and makes them more inclined to dine on their neighbors once fresh game can't be found.