Are you honestly suggesting that the Golden Rule and Good Samaritan and Prodigal Son morality has no place in the 21st Century?
That morality is not exclusive to Christianity. The Bible does not have a monopoly on morality.
Also, if you can pick and choose through the Bible, a book that as a whole is morally bankrupt, to put forth the premise that it is a source of good morals, then can't you do the same with Mein Kampf? I'm sure there may be one or two things in Mein Kampf that amounts to common sense and we can all agree on. But does that mean that the overall message of Mein Kampf is positive and moral, just because of a couple of passages?