As a nonbeliever, I would not sacrifice a human life for an animal life. I know that you’re going to ask me why, and my answer is that I’m a speciesist. I value human life more than I value the life of a dog or a cow or a crocodile. I’m a human myself, and it’s simply an instinct of mine.
You seem to take the view that no atheist would ever give up their life for another, but I know that you are wrong. I am an atheist and I am in the military, meaning that I volunteered to give up my life for others if need be. Granted, I don’t want it to happen and chances are it won’t, but if the time comes I will. I know plenty of other atheists in the military as well, and they are more proof that your implication is wrong.
You are - understandably - misinterpreting my statement:
The rejection of the claim that heroic sacrifices like Kolbe’s are not the result of divine grace - and are solely due to a personal desire to help a person one doesn’t know - is implausible in view of the evidence that non-believers are prepared to sacrifice a stranger for an animal (unless the latter are seriously misguided).
I did not specify **all **non-believers.My statement is based on an non-believer’s statement that she would save the life of her pet rather than the life of a stranger if only one of them could be saved. It is unlikely to be an isolated case because many lonely people (particularly in the UK) love their pets so much their only thought in a crisis would be to save it - and even die for it.
I agree with you that many non-believers would give up their lives for their friends, relatives and other people they know but how many would do that for some one they have never met? You rightly value all human life but you believe we are all related by an
accident of birth. That is a vastly different proposition from believing we are all brothers and sisters with the same Father in heaven.
However noble your intentions are (and I don’t doubt for one moment they are noble) you cannot be motivated by the same love for everyone as a Christian. It is not your fault and it is not because we are morally superior to non-believers - who often put us to shame. It is because we have the privilege of believing we belong to
a family **which is intended to exist and created out of love **- which we should do our best to emulate.
Like us you believe everyone should treated equally regardless of colour, race, class, nationality or any other factor but you don’t have the same rational foundation for that belief. It is unrealistic to think a non-believer can treat everyone as kith and kin. Even Christians very rarely live up to that ideal because they have all the faults, failings and weaknesses of everyone else but they at least believe it is possible with the help of God’s grace. Self-sacrifice and prayer enable saints to perform feats which are impossible for those whose faith is weak or non-existent.
As a military man you know - far better than I - that united we stand but divided we fall.

But Christians have no enemies to stand against - except themselves - because we are taught to forgive, pray for, love - if need be - die for our “enemies”. In the eyes of the world this is sheer lunacy. Yet it is what Jesus did and we should be prepared to do the same. It is a counsel of perfection but
“A man’s reach should exceed his grasp or what’s a heaven for?” - Robert Browning :
(As he was deeply in love with his wife Elizabeth “man” obviously includes “woman” - unless a woman is thought to need less effort to reach heaven!)
Without any evil in the world there would be no opportunity for nobility of character.
Elizabeth suffered from illness all her life and died before Robert…