He didn’t grow up in a place like you I did. He was in Indonesia where that is just the way things are. There are cultures that eat all kinds of stuff to survive.
Oh I realize he was in Indonesia after age 6. However, I am somewhat surprised that he would eat dog. By age of 6,I don’t believe I could have enticed or forced my children to do that.
Ages 6-10 are very formative years. I would submit that is when much of our culture and patriotism are instilled...during elementary school years; he was not here, learned the ways of Indonesia (including eating dog which is pretty abhorrent in US culture)...which may explain some of his world view.