I think it's simply an emotional thing. It's easier to trust your own countrymen since you are more near to them. So trusting some other country at the other end of the world is a bit harder.
Still, if the protocol itself is borderless and not making biased judgements based on region alone, maybe some of its users could learn a thing or two from that. You can't rationally tout the merits of a global system and then start casting aspersions when the rest of the world gets involved. If anyone is seriously thinking that people in country X are somehow less trustworthy than people in country Y to help secure the network, they need to spend some time considering what type of person they are. As long as the hash power is still reasonably well distributed around the globe, this is not an issue. Maybe if one nation had more hash power than all of the others combined, that could be considered a problem, but some of the views expressed in this thread just sound like baseless discrimination to me.
I hope so. At the end we are all human and living on the same earth.
![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
But i think humanity made some huge steps in the right direction here. There are opposite movements, like IS but still... i see hope.