The best part of humanity is that, for all of our differences, we share a lot in common. We all feel the same emotions, our lives follow very similar paths of childhood, adulthood, and old age. We gain wisdom as we experience the world, and we come to realize our own mortality more clearly the closer it gets.
We all get a cold now and then, that's why it's called "common". I have one now, it seems. We all (mostly) like babies. We all dislike pain and suffering and death. We all like delicious food, and cool clear water. Sunshine is quite popular, as is warmth in general.
We all want control of our own lives, the best for our children, and fair and honest treatment from our fellow man. We all do good and bad things, we are all imperfect and mortal.
People are people the world over. Sometimes they would rather you forget that and focus on their special difference.
My unsolicited advice is, don't. Treat them all the same. I think it works better that way.