DC,

Because those are just statements of opinion, not facts.  There is no evidence of cause and effect provided.  The one (expelled) to three (stayed) ratio provided is actually evidence that the opposite may (notice the word may) be true.  Instead of the mythical apartheid racist state that many folks strain to prove with scant real evidence, we have evidence of white citizens defending black citizen's rights to live in Oregon when it is clearly against the law and the law not being enforced by said racist government!  No tar and feathering, no running out on a rail, no lynchings (though I think I do vaguely remember reading about the possibility of a mock lynching).  It seems to me "Oregon racism" is far more smoke being blown than fire.  But if it makes one feel good to feel guilty about policies and events that one had nothing to do with or believes and ended almost a hundred years ago, go ahead and feel good.  Just don't expect everyone else to get all worked-up about it.