I guess we have a rhetorical question from nightwarrior and he makes a point against racism.
Anyone with half a mind can see the wisdom of accepting all people ,whatever colour we may be . I have sadly observed that some are easily persuaded otherwise when something happens locally or personally to them. eg, the media is full of stories about illegal immigrants scrounging, or the government wants to start a war against someone,or they come across an unpleasant individual.
I believe we have to rise above all that and keep our human values to our fellow man "Peace on Earth, good will to all men" and so on......