First off, as a former Wiccan minister, I can tell you that we don't go into hospitals and announce we are 'praying' for someone to recover from an illness or surgery. Wiccans don't 'pray' as Christians do. And we certainly won't be all uppity about it if we did.
We would more likely simply spend time with the person and ask if they would like a healing spell done either then or later.
I'm an atheist. I abstain from any prayer to any gods. I might feel concern for the mental state of my Wiccan relative, and I would try to avoid any rudeness towards her beliefs.
My concern would be with the condition of my Uncle, not in making any statement on my lack of beliefs in any gods, nor Wiccan "energies".
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.