Biblical Christianity is equated with hatred in this world. While God the Father, God the Holy Spirit, the Bible, and church are easily dismissed, Jesus Christ, the Savior, is a real problem in the world your children will inhabit. Redemption is said to come from within. So, you just forgive yourself for what you have done. But others will not see the need for soul-searching. Since we live in a world determined by evolutionary currents, there is nothing left but to go with the flow. In contrast, Jesus Christ means we are guilty and there is not a thing any human can do about it apart from the grace of God.
Thus, your children will enter a world that has no room for Christ. It is fine for Jesus to be a baby as long as he doesn’t grow up. It is fine for Jesus to be a man as long as he is not God. It is fine for Jesus to die as long as that death carries no eternal significance. This new world is okay with what does not condemn. But the perfect life that Jesus lead condemns every person on this planet. Only Christ holds the key to redemption.