I think there are limits to what children should be exposed to. Let them have their childhood. Craft an environment in which debauchery and atrocities do not exist. Give them a world full of love. When they’re a bit older, they’ll discover that not everyone is so fortunate. They will know what they’re striving for, and what they’re fighting against. Protect their innocence when they’re young.
I really didn’t address how to handle the negative messages children receive about abortion, did I? If you can prevent them from receiving those messages, obviously that would be ideal, but here in the real world that isn’t always possible. So you have to lay a foundation ahead of time, with age appropriate lessons about where babies come from. When the topic of abortion is brought up in school, your children should already know that’s a baby the teacher is talking about. There are now available some very nice photographs of babies in the womb, which I think are appropriate for any age group. Keep the lines of communication open with your children, so you’ll know when someone approaches them with inappropriate messages. When they are exposed to the pro-abortion message, counter it with reminders that this is a baby we’re talking about. Bring the pretty pictures out again. Instill in your children the positive message of God’s love and the miracle of life. When someone tries to steal their childhood by inflicting violent messages on them, do your best to shield them from that, and handle the violence yourself.