People like me can afford to go through life taking for granted that because we’ve never been harassed or profiled that maybe other people are just making it up in their heads when they say they have been. Because for one thing, we almost never understand other people’s motivations—and so we often project our own motivations onto others, supposing them to be about the same. 

And for another thing, if we’re wrong, and people actually are the target of racist, xenophobic, or sexist motivations, it doesn’t have much affect on us personally.