How do you explain this to your children? Be honest.
Say, "Well, My Dearest, you are not a straight, white, christian male so you have fewer rights.
"You aren't a lesser person, My Love, but because you are gay, those in power will spread lies about your ability to feel love for another human being. Because you aren't a christian, those in power will always think you are a cheap, greedy demon with horns and a tail, and, of course, a terrorist. My Sweet, because you aren't a male, those in power will never let you forget that your body belongs to them, especially if you've been impregnated. Yes, my Precious One, even if it was forced upon you.
And because you aren't white, those in power will always judge you to be inherently evil, and they will see to it that your voice is never heard, your rights never honored, and your place in society kept strongly chained many pegs below them, or better yet, out of sight. In your own home or prison, it matters not to them.
"Never forget you are just as good as them. Never forget you are not a lesser person. And never stop fighting, peacefully, against those that would hold you back. Because, as Melissa Harris-Perry's father would say, "The Struggle continues.""
When your child is older, tell him or her that George Zimmerman is a mincing fucking cunt, and you hope someday someone tears his fucking skin off, wears it to his mother's birthday party, and rubs his nuts up and down her leg whilst whistling Bohemian fucking Rhapsody.
Trayvon Martin deserved better. I hope his murderer spends the rest of his life looking over his shoulder.