I can answer this with a psychological review: What in recent history has an Australian gone and pissed off a lot of British people in F1 which would stand out....0, I would gather.
Sebastian.....Schumacher////Ruthless
Christian Horner......Ross Brawn////Team orders
Mark Webber.....Rubens Barrichello///Loveable number 2 who deserved more
Now lets imagine this for a second, if Lewis/Jenson/Di Resta was in the same situation as Seb at Silverstone 2010 regarding the wing, do we believe the same comments would come out from the British public if Mark acted the same way? would this even be an issue if Seb wasn't German?
Personally I don't think so.
What im saying is the reason why people to a certain degree, do not trust Seb is that they expect most "great" German F1 drivers, have a certain trait to winning (being ruthless) which doesn't happen with any other country, or so they believe.
Good read:
http://en.wikipedia.org/wiki/Schema_(psychology)
Im not stating it's a fact with this but our minds do use automatic processes to describe to ourselves a unique enviroment for us to comprehend: "I can trust him/her because..." or "I can't trust him/her because"
Basically in short your mind is automatically predicting the future, almost like trying to predict the end of a film as all the information your mind stored through your life will then try and figure out individuals and familes.
So in short people who dont trust Seb as an individual must believe he will turn nasty sooner or later and be just like Schumacher.
Here's a funny story added on top, watch the Nicholas Hamilton episode last night and noticed something very similair to between me and Lewis. I wont say what it is but maybe because the reason why I dislike Lewis so much is because it's very likely I would of done the same things in his past if I was put in his situation, funny that eh? So when I'm angry at Lewis, I'm really just angry at myself as I believe I would of done better, or things differently and handle some cases worse, aka kicking the **** out of Massa at Singapore.