My read on all of the twitch spam of this etc. is that it was coming from places (outside of NA) where the national makeup is much more homogeneous than in the United States / NA.
The concept of having a truly multicultural national identity is pretty unique, so its something that can be hard for those from other countries to understand. Then again, maybe I am just being naive on this.
That being said, yes it is tilting - someone like Doublelift IMO embodies the aspirational meaning of what it is to be an american. The dude works incredibly hard to be the best at his craft, has overcome several setbacks, but always comes back stronger.
Import players too are taking there shot to succeed here, and as a fan I don't think about where the players representing my region are born, all I care about is them being proud to represent our branch of League and go out there and play their best.