Why is it so hard to believe that White people did not live in other places be it China, Africia and So on. I Think people need too study history on things before they assume its just about casting a popular white actor. The better question is i can think of many better actors then Damon too play that role.
Iroquois:
Tell that to the Asian people who have to watch Matt Damon play white saviour.
I'd say that pointing out the problems with a movie like this is actually supposed to be a step towards different races overcoming their own prejudices (even internalised ones like the Chinese producers of this movie thinking that putting a white American in the lead role is necessary for the movie to be a hit). That's not just some thing that's going to magically happen one day - it's a slow process and part of the process is actively questioning why the most expensive Chinese movie ever made supposedly needs to have a white American in it.