[mothballed]

USA is proximally to blame, but Iran in its current borders is an entity that is largely the brain child of Britain. It ended up encompassing the Baloch and Kurds, who could have helped check Persian power and make Persian borders more penetrable, which was probably a geopolitical mistake.

[fsckboy]

the Baloch and the Kurds are ethnic Persians, they speak Persian languages.

[mothballed]

>the Baloch and the Kurds are ethnic Persians,

Wut

> they speak Persian languages

As a lingua franca, sure. By some very twisted semantics maybe, but really, no.